Meitrack MT90 Personal GPS Tracker. Gps трекер теле2

3G GPS Tracker from Trackimo

Here are some reasons why you should choose Trackimo over other GPS Devices:

  • Free GPS service for the first year – Only $5 per month after the first 12 months, the lowest monthly service cost of any tracking device worldwide. The monthly service pays for the worldwide SIM card using the GSM network to report the real time positioning of the device (just like AT&T etc. has monthly fee).
  • Track anywhere – Trackimo devices can be tracked via web or smartphone app anywhere GSM cellular reception exists worldwide.
  • Free Android and iPhone Apps – no need to pay extra to know where your device is
  • SOS Button – With one press of the SOS button, the location can be broadcast via app notification, email, or text
  • Real Time Tracking – GPS and GSM provide highly accurate current location and one year of history
  • Smart Alerts – User alerts via text, email, and app notifications for location change, customized speed thresholds, and sudden movement or impact.

Peace. Safety. Security.

Trackimo uses GPS and cellular technology to protect those who matter to you most. A personal tracking device, Trackimo is small enough to fit onto the palm of your hand and is powerful enough to track your loved ones from anywhere on the globe.

Whether you’re a concerned parent, a frustrated pet-owner, or a busy fleet manager, Trackimo can give you the edge. With Trackimo you can always keep an eye on your rambunctious teens, your disobedient pets, or your significant others. Simply use the web or your smartphone to know the position of the device.

Using powerful GPS technology, this little device can read a global position with up to 50 feet accuracy. No more wrecked nerves. No more calling a phone that won’t pick up. No more mystery. Trackimo helps you find the exact position of your loved ones; and with an SOS button, this device will notify you whenever there is trouble, giving you much-needed peace of mind.

Trackimo allows you to:

  • track down stolen vehicles
  • locate your children, pets, or elderly relatives at any given time
  • know when your child has exited a set safety zone
  • find a lost family member with Dementia or Alzheimer’s Disease
  • follow up on lost luggage or a business shipment
  • aid your loved ones in distress

We use simple, reliable technology in a compact, powerful device without the need for expensive hardware costs or pricey contract fees. Trackimo beats the competition with affordability:  we provide you with a free first-year service; and after that you can continue using the product for only $5/month – there are no contractual obligations either. No hidden costs or fees. And if you don’t like our device within the first 30 days of use, we will reimburse you the full price (minus a $25 restocking fee).

Trackimo is a powerful, low-cost device that will give peace. Check out the features below:

Product Specifications

  • Item Weight:                1.4 Ounces (42 Grams)
  • Item Dimensions:        L: 1.8”, W: 1.6”, H: 0.7” (L: 47mm, W: 40mm, H: 17mm)
  • Network Band:            Quad gsm 850 / gsm 900 / dcs 1800 / pcs 1900
  • Battery:                       600 mAH Lithium-ion battery
  • Battery Activity Time: 48-96 hours
  • Product Warranty:      1 year

In-Box Specifications

  • 1 Trackimo GPS Device – 1 Worldwide SIM Card included
  • 1 Micro USB Charging Cable
  • 2 Battery Door and one with belt clip
  • 1 Battery
  • Silicon case
  • Magnetic attachment
  • Lanyard

Product Highlights:

  • 12 month mobile service included
  • No contract required
  • Location-sharing for preset time, 1 hour, to 72 hours
  • 365 Days of past history
  • Smart alerts: Battery Low, Speed Alert, Geo-Fence
  • Beeping command to help you find misplaced device
  • Worldwide coverage*
  • SOS button
  • Customized buttons for different messages
  • Lowest monthly service cost available
  • Free shipping for Continental U.S and Canada
  • Twelve months manufacturer warranty
*Note: In Japan, Korea, Australia, Singapore, and small parts of Canada &  US (US dominated by AT&T only), regular 2G trackers will not work. In these regions, 3G Tracker will work well.

The 8 Best GPS Trackers to Buy in 2018 for Hiking, Cars and More

Whether it’s for Google Maps and navigating to dinner on a Saturday night or hiking through the woods, utilizing GPS has become a staple in our everyday lives. In fact, it’s become such a daily occurrence that we often forget it’s there, but its uses go far beyond navigating to the nearest coffee shop while traveling out of town. Tracking people, pets or automobiles via GPS has vastly improved in recent years, so let us help you find the tracker that's right for your needs.

The Spot Gen3 is a hiker’s dream GPS tracker and it has a rugged outer shell that’s more than capable of withstanding harsh environments. The rubber edge wraps around the plastic exterior guarding against shocks and impacts and even seals the body for waterproofing. While the build quality is notable, it’s the support of a satellite phone system that truly makes the Spot stand out. Unlike most GPS trackers that rely on a cellular signal, the Spot works on a satellite phone line that allows it to broadcast location data in places that most cellular GPS trackers cannot reach.

Preserving battery life while on-the-go in the wild isn’t just a good idea, it’s downright essential. The Spot hits on this with tracking motion that sends updates while you’re on the move and stops sending updates when you’re not. Setting up the Spot is a snap and GPS updates are able to go out every 5, 10, 30 or 60 minutes. If you’re in extreme conditions, you can even set adjust the update frequency down to as low as every 2.5 minutes to stay in touch with the outside world. Battery life varies by use frequency, but can go anywhere from seven days on four AAA batteries or as long as 156 days if used on 60-minute intervals with a 100 percent clear view of the sky. For the adventurer who likes to take to the trails, the Spot Gen3 is a must-own.

Simple, tough and highly accurate properly describe the Trax Play Kids' GPS tracker. Capable of working in over 33 countries, the one-ounce Trax allows parents to be notified whenever a child leaves a designated safe zone. The Android and iOS smartphone apps allow location tracking directly to the Trax unit, as well as augmented reality and on-demand notifications. The Trax unit itself is well-built and capable of withstanding extreme temperatures (it's also water and dust resistant). Trax Play also holds the title of being the world’s smallest and lightest GPS live tracker.

The built-in SIM card connects to T-Mobile’s 2G network requiring the purchase of a data plan directly from the smartphone app or via Trax’s web store. Plans start as little as $4 a month for 24 months of prepaid GPS monitoring. Through the data connection, GPS location updates can take place as often as every 10 seconds or up to one minute for better battery life. Trax lists the current battery life of up to 24 hours, so given its critical function, charging it nightly is recommended. Small, reliable and incredible easy to use, the Trax Play is a fantastic choice for parents looking to keep tabs on their little ones. 

There’s a good chance you or someone you know has a lost a bag while traveling. It happens to the best of us and makes for another reason why GPS trackers are invaluable. The Amcrest AM-GL300 isn’t a dedicated luggage tracker, but its water-resistant matchbox-sized case easily fits into any kind of checked luggage. Add in two weeks of battery life and you’re turning the tide by locating your lost luggage without waiting for the airline to call. The Amcrest works off a quad-band 2G GSM network powered by both AT&T and T-Mobile offering GPS location wherever cellular signal is available.

You can’t put a price on peace of mind, which makes the monthly service plan more than worth the cost considering it can easily double as a GPS tracker for a car or inside a teenager’s backpack when not tracking luggage. Accessing your GPS location is accessible remotely via a smartphone or computer offering real-time location with updates as quickly as every 60 seconds. Adding geo-fencing alerts will help you quickly identify if a piece of luggage hasn’t made it to the required destination instantly via e-mail or text message.

Keeping track of your elderly loved ones is super important, and the Yepzon One Personal GPS locator is a very tiny wearable that feels more like a pendant. It works off AT&T and T-Mobile 2G networks and there is no distance limitation. It can track the location of any elderly person by refreshing the GPS signal every 10 seconds. The works- anywhere approach is matched by nearly unrivaled battery life that can last several weeks to even several months depending on use. The location tracking intervals can be set via the downloadable smartphone app that offers room for multiple caregivers to follow any Yepzon One GPS unit.

Right out of the gate, Yepzon includes six months of free usage followed by a monthly recurring charge of just $4.95 per month. The versatility of the Yepzon makes it more than ideal for elderly owners who can wear it around the neck without worrying about recharging. The waterproof casing makes it equally ideal in case it’s worn in a pool or shower (falls in the shower are all too common with elderly). Simple and easy to use, the Yepzon is perfect for those who want to look after their parents and grandparents without feeling overbearing.

The Pod 2 GPS + WiFi pet tracker is one of the smallest and lightest GPS trackers on the market for pets. At just one ounce, and two inches long, the Pod 2 is designed to fit any size collar and measure both GPS location and your pet’s activity level. Right off the bat, the price might scare a few people off, but it’s less expensive than most pet trackers in the long run, thanks to lower subscription fees. In fact, the initial cost includes a one-year free subscription. 

Beyond cost, the Pod 2 locates your pet both indoors and outdoors at the push of a button on the downloadable smartphone app for both iPhone and Android. Locating your pet takes place over a cellular 2G network while WiFi is included to help better pinpoint an exact GPS location. Setting up a geo-fence via the smartphone app can help immediately notify you if your pet tries to wander out of the predetermined “safe” zone. Additionally, the Pod 2 will monitor activity level like resting, walking and running to help monitor the health of your four-legged friend. With location refreshing every few minutes, the interchangeable battery life can last anywhere from six hours up to six days depending on how frequently the Pod 2 is active.

Discovering your car missing might cause sudden panic, but if you’re the proud owner of the Vectu portable vehicle tracker you’re in good hands. The worldwide GPS tracker works anywhere a 2G GSM signal is available and costs just $15 per quarter or $50 annually without any activation fee. Once you’ve locked in the plan, you can receive location updates every 60 seconds while the vehicle is in motion. Additionally, the Vectu can provide up to 90 days of tracking history to help you identify where your vehicle has been in the event it is stolen or if a teenager takes the car out on a Saturday night.

With the available Android and iPhone smartphone app, you have all the tools you need to securely control and monitor wherever your GPS tracker is located. Unfortunately, the Vectu doesn’t connect directly to the vehicle for endless power, but offers a battery that can last for several days if left powered on before needing to be changed. The good news is that you can hide the Vectu anywhere in the vehicle so it’s not easily discovered by both teenagers and criminals alike. As an extra bonus, the Vectu also offers geofence alerts, notifications for up to four separate phones, over the speed alerts and instant notification for unauthorized movement.

Providing location updates as often as every five seconds, the STI_GL300 is perfect for tracking fast-moving vehicles like motorcycles. It weights just eight ounces and measures three inches in length, so it’s easily attached to the bottom of your bike, though it’d be wise to purchase a waterproof case to protect it. As with other devices on this list, it lets you designate a geofence and set alerts when your motorcycle strays beyond its limits.

While battery life will depend on the interval settings, a motion-detecting accelerometer helps extend its life to about two weeks. When the device is on-the-go, the battery automatically powers on; when it’s stationary, it powers down to save juice and prevent it from dying at a crucial time. It’s yours for $25 per month, with no activation or cancellation fees.

Though bulkier and more expensive than other trackers on this list, this rugged SPOT tracker uses satellite technology to track beyond the reach of traditional cellular coverage. You can set it to receive updates every 2.5, 5, 10, 30 or 60 minutes and follow it along on Google Maps. You can also set it to receive alerts via text message or email if the device has a low battery or has been powered off. (The four included AAA batteries will last you a good six months.)

SPOT is waterproof rated at IPX7, which means it’s protected against splashes, rain, showering and incidental exposure of water of up to one meter for 30 minutes. Even so, you’re probably best off buying a waterproof case for it. The required service plan starts at $10 per month, but despite the cost, it’s a must-have for your expensive toys.

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Best GPS Trackers 2018 - Tracking Devices for People and Vehicles

What Key Features to Look for When Buying a GPS Tracker? 

TrackingAll of these GPS tracking devices rely on GPS for location updates. However, a few also use cellular networks for more precise tracking and to boost coverage when your child is indoors. A few units even support Wi-Fi or Bluetooth. We found that devices with multiple connection options are more powerful and precise, giving you a more accurate location update, especially if the child is indoors.

Update intervals are another critical factor to consider when buying a GPS tracker for your children. Each device on our lineup has a different minimum and maximum update interval, so consider how frequently or infrequently you’ll want location updates. Some trackers can notify you as often as every five seconds, while others can be set to update once every six hours. Most of the units let you customize the minimum and maximum intervals whenever you want. Only about half of the units we featured can give you an on-demand location update.

One of the best features of a kid GPS tracker is the ability to set up a geofence, which is a digital perimeter you can set up around specific zones, such as your home, their school or an approved friend’s house. Typically, once you set up a geofence, the app can then alert you whenever your child enters or exits the area.

MonitoringYou can monitor your child’s whereabouts either by logging into a user portal on the device manufacturer’s website or by downloading a free companion app onto your Android or IOS smartphone. Some products offer both options. The best apps let you view your child’s current location as well as a recent history of where they’ve been. You can also set up one or more geofences and receive notifications whenever your child enters or exists a zone. Each app has alerts you can opt to receive, such as a speed limit alert or low battery alert.

Battery life differs for each tracker and is dependent upon several variables. The figures in our side-by-side comparison reflect the optimal battery life expectancy for trackers used on the least-frequent update interval, with minimum usage, without making calls or using other functions. Some units must be recharged every 2-5 days, which can become a hassle if you have a busy schedule, while others can last up to two weeks, making them a bit easier to manage. If you know you’re the forgetful type, consider My Buddy Tag, which lasts for a year – you simply have to replace the tracker tag once a year for a low cost, and it’s hands-off from there.

DesignBecause these trackers are meant to be used by kids, it’s important to choose a model that is simple enough for them to use. All of these units can easily be used by teenagers or older kids, but units with too many buttons or a confusing interface may quickly overwhelm younger kids.

The devices are generally flexible in how they can be worn or stored. Some of the ones we tested can be worn as a watch and have adjustable bands that grow as your children do. One comes with a lanyard and can be worn like a necklace. The others are small devices, fitting in the palm of your hand, and can easily be stored in a backpack or in the pocket of your child’s jacket or pants – whichever is more convenient.

Most of the trackers we tested are capable of surviving everyday wear and tear. Some have super high-quality, rugged designs that are water resistant and capable of surviving drops, making them a good option if you have active or athletic kids. Few devices are fully waterproof, but being water resistant allows for the occasional splash without frying their circuits. Good devices have rubber seals over all charging ports, ensuring that water can’t get in and protecting them from damage. The best devices in our lineup felt well-made and sturdy, not cheap.

Beyond checking to see if these devices are well-made and easy enough for your kids to use, we also checked the ease of use of the accompanying app or online portal. This is where the person monitoring the child logs in to get location updates, adjust settings and view alerts. Apps that scored the highest in our tests were those with a simple, intuitive layout, with every option being clearly labeled and easy to find. It also gives you full control over all settings.Voice-to-Voice Calling & Panic ButtonsSome GPS trackers include two-way voice-to-voice calling. This enables the device user to call one or more preset numbers by pressing a button on the device. Other trackers have panic buttons that trigger a text message or email alert to be sent to a predetermined number or email address. These features are especially useful if the person with the tracker does not have a cell phone or can’t access their phone.Support & CostsSince a GPS tracker could be the only lifeline between you and your child in an emergency, it’s important to buy a quality product backed by capable customer service from the manufacturer. By choosing a unit that comes with a lengthy warranty and multiple customer support resources, you give yourself the best chance of keeping your GPS tracker up and running.

Look for manufacturers that offer at least one direct contact method, such as live chat, phone or email. Also, manufacturers that host a wealth of informational resources on their website – such as tutorials, manuals, a FAQs section, a knowledgebase or a community user forum – make it easy to stay up to date with the product or troubleshoot an issue without talking to a customer support representative. All of the products in our comparison come with at least a one-year manufacturer warranty.

All but one of the devices in our lineup require a monthly service subscription in order to work; thankfully, most of those subscriptions only cost about $10 per month, or less, though some cost as much as $25 per month. Consider the initial purchase price of a GPS tracker as well as the monthly subscription cost alongside its features before making a purchase. For some units, part of this monthly charge is for connecting the device to a compatible cellular network provider. All devices use GPS satellites for tracking but many also rely on cellular networks, especially for indoor tracking. If you and your children travel frequently, be sure to choose a device that works internationally.International UseA tracking device’s most important function is, of course, tracking your love ones and valued belongings. One of the easiest places for that to happen is an unfamiliar country. Only a few trackers allow for international use, so consider one of those units if you know you’ll be travelling abroad frequently with your kids.Should You Buy a GPS Tracker? 

Having a GPS tracker for your children – or even your pets or valuables – isn’t a necessity, but it can provide you with peace of mind regarding their whereabouts. They’re especially helpful if you as a parent work while your children are at school or a friend’s house, or for your kid while they’re away at summer camp or travelling internationally. For the most part, these trackers are relatively inexpensive and low-maintenance, and are absolutely worthwhile if you need to keep an eye on where your kids are.

Some of the biggest benefits to using a tracker – besides customizing location update intervals, viewing recent history and setting up geofences – are that you can choose a device that allows two-way calling, has a panic button and that can work internationally. It’s a great way to keep you connected to your children wherever they are.

If your child has a smartphone, you can technically also use that as a way to track their location, but there are downsides to doing so. Typically, location tracking requires GPS, which can quickly drain a smartphone’s battery, meaning that you won’t get the all-day usage out of it that you can with a dedicated tracker. Additionally, tracking can, at times, need to rely on cellular coverage, so it can eat up your data from your monthly plan. Both options will ultimately cost you upfront and monthly, but a dedicated GPS device is the optimal choice.

Buy Meitrack MT90 Personal GPS Tracker

Meitrack MT90 Personal GPS Tracker

The MT90 can provide up to 16 hours of battery in normal use and 80 hours of battery in the power-saving mode with its Compact, Lightweight, waterproof and a long life built in battery. This is a multi-purpose tracker that can be used to track what you value most for example vehicles, motorcycles and other valuable assets. Weighing at only 65grams and a mere 77x47x20mm in size it is also ideal for pets, children and the elderly. You can track the MT90 with both SMS or GPRS.

The Geo-Fence control can be used to set pre-defined virtual perimeter safe zone, The tracker will alert you with a text message when the tracker leaves this safe zone. The MT90 can also be used as a GPS logger. When GPS logging is active the MT90 will store the tracking data to the micro sd card (not included) which can be downloaded to any PC at a later time. A 1GB micro sd card will have enough space to record 300,000 waypoints.

Pressing the SOS button on the MT90 will make a phone call to any pre-configured number and activate the built-in microphone and speaker enabling a 2-way conversation.

The MT90 is one of our most powerful and easy to use GPS Tracking devices. GPRS (internet) tracking can be done free of charge on online tracking platform. You can use website the see the current location of the MT90 and keep a 30-day history of your tracks. The website gives you access to many other features as well. This device is best used as personal, elderly, kid, pet GPS tracker.

Ready to use out the box

Pre-configured including your on-line account and first £5 credit, which will last for 2-3 months using live tracking mode. So you will be up and running GPS tracking your vehicle in no time at all.

M2M Sim Cards

Travelling to Europe? Then one of our M2M data sim cards is a fantastic solution to avoid costly roaming charges for a fixed annual cost. M2M data sim card technology is specially developed for use in data only communicating situations, such as GPS tracking devices. In addition to being able to roam across the Europe with no extra charges, our M2M data sims are multi-network, enabling them to connect to the strongest mobile signal available no matter the network in the UK and EU. These excellent features make our fixed cost M2M sims an excellent solution for travelling or using your GPS tracking device in remote areas.

Key M2M Sim Card Features

  • Fixed annual cost
  • No data roaming charges within the EU
  • Multi mobile network access ‘best signal’
  • Pre-configured
  • OTA Updating

To view our current range of standard M2M options simply select from the sim options at the top of the page. If you require an M2M sim card for use outside of the EU zone, Text message bundles or with custom spec, we can provide a solution that’s right for you just get in touch via the ‘contact us’.

GPS Live Tracking Platform

With our UK based on-line tracking platform you will be able to view all your trackers in one place simultaneously including their travel history for the prior 90 days.

GPS live is fully customizable including your view, with a choice of Google, Bing, Yandex and OSM Maps just to name a few, including full address and postcode of each trackers current location. You can also activate email alerts for events such a speeding, geo-fence zones and out of hours use. Create scheduled or manual reports for each tracker including mileage, average speed and drive time. 

Demo Login for User Name– [email protected]  Password- 123456

Mobile App

With our FREE to download IOS or Android mobile app so you can log into your GPSlive account while you’re on the go. View all your trackers in once place including their current location as well as their history. The mobile app also makes activating the advanced SMS alerts on the GPS tracker easy and stress free.

Adroid :




Track your vehicles real-time, anywhere in the world using your smartphone.


Shows the trips and routes carried out on any day, up to previous 3 months.


Access summary of all your GPS trackers, view, edit and track them. 


Shows the list of recently events/alarms with time and location data.


"At a glance" dashboard with live speedometer, battery and ignition status.


See the location of your trackers on the map with the option to change map types.


View your previously set up geofences on your smartphone.


Allows access to various useful map tools such as location search.

Top 4 GPS Trackers for Motorcycles

Nothing beats the thrill of riding your motorcycle down the highway. Motorcycles can get into places other vehicles cannot. They have great fuel economy. It just feels great riding them in the open air. This list of great things about motorcycles can go on and on. However, the same great things that make them great also make them prime targets for thieves. There is nothing standing in the way between a potential thief and your motorcycle’s ignition. Fortunately, you can use a GPS tracker if the unthinkable happens.

What is GPS Tracking?

GPS tracking gives you the accurate location of your bike. They are user-friendly and work with every motorcycle on the market. Tracking devices use GPS to quickly record their locations and then wirelessly transmit that location to your mobile device, through a central server, at regular intervals. This information includes the location along with the motorcycle’s speed and direction of travel.

Benefits of GPS Tracking

While adding a GPS tracking system to your motorcycle might seem like an unnecessary expense to some, there are a number of advantages to having one.

  • Insurance benefits – Many insurance firms will lower your coverage rates if you have one.
  • Easily available – You can find motorcycle GPS tracking systems wherever you buy GPS devices and other motorcycle accessories.
  • Safety and Theft Prevention – GPS trackers allow you and law enforcement agencies to find your motorcycle quickly if a thief steals it.
  • Improved maintenance – A GPS tracker will tell you when to bring your motorcycle in for servicing.

The Top 4 Motorcycle GPS Trackers

To get you started, here are the top four motorcycle GPS trackers on the market.

1. TrackmateGPS HYDRO

As of 18/12/2017, this item is listed as “currently unavailable” on

This 5-ounce, waterproof GPS tracker requires a GSM network to function but is otherwise one of the highest rated trackers on Amazon. You just place it somewhere on your bike, insert the batteries, and you are good to go. There is no visible antenna on it either. You can hide it anywhere for added security.

The TrackmateGPS HYDRO continuously tracks your motorcycle’s position, but will only transmit this information to the receiver by request. The trackers can then display your motorcycle’s exact geographical coordinates, a speed, violation of set fences, and more.

Check current availability of this item: TrackmateGPS Hydro

2. AES RGT90 GPS Tracker SMS Locator

The AES RGT90 has a 2.5-meter accuracy range and an inactive wireless SIM card pre-installed. This SIM card runs pre-paid, requiring you to pay $10 every 3 months to use the tracker. Fortunately, your first 6 months are included in the purchase price. However, the included SIM card only works with U. S. cellular networks. You should replace the SIM with a local one if you plan on using the tracker outside of the United States. Either way, you attach the device to your motorcycle with the tracker’s magnetic base.

While you must pay to use it, the tracker does not work automatically. You need to call the devices attached phone number to know where the tracker and motorcycle’s current location. The tracker will then reply with a text message with a Google Maps link with the information.

Still, the AES RGT90 GPS Tracker SMS Locator is the best pre-paid GPS tracker on the market. You get all the information you need when you need it with no hidden additional charges.

3. Racelogic VBox Sport

While you can hide other trackers where you want them, the VBOX Sport was made for motorcycles.  The waterproof, palm-sized unit sits snuggle to your handlebars, measuring the bike’s acceleration, braking, and handling performance with the same precision you see in motorcycle magazines.

More of a professional-grade GPS data logger than a tracker, the VBox Sport saves its data to a removable SD card you can insert into a Windows PC to analyze later. You can also link the device to your iPhone via Bluetooth for use with the Racelogic Performance Test and Laptimer apps. Both apps provide insights for improving racing motorcycle performance. This is great, but they may not be what you need for normal, every-day riding.

Regardless, you must install the Racelogic VBox Sport face up to give the internal antenna a clear view of the sky. If you need it, you can buy a handlebar mount (about $20 extra), that will let you attach the device to your handlebars, provided your motorcycle can use it. However, you might get better performance  out of the included Velcro mount that lets you attach the tracker to your seat or fuel tank.

4. ATian 303G GPS Tracker

While not the best tracker on the market, the Atian 303G has everything you need to track your motorcycle. The smartphone-sized, waterproof device sits snugly to any surface with its docking harness. The harness does not attach magnetically to your vehicle,though. You must screw it in place. However, it does come with its own screwdriver in case you need to make a few quick adjustments.

The tracker itself connects to the harness through a 12-pin connector. While this makes for an easy setup, it does leave all the wires exposed. You can easily pull or rip a wire out of its socket if you are not careful.

Still, if you can get past the hardware downsides, the Atian 303G GPS Tracker is a solid choice for all your GPS tracking needs. It uses the standard cellular networks to reach your mobile app to give you all the information you expect from a tracker. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to,, and other Amazon stores worldwide.

Last modified: December 18, 2017

Geoff's Projects - GPS Tracker


The GPS Tracker is a small gadget that will record exactly where your vehicle, boat or aeroplane has travelled over time. It is intended to be wired into the ignition of your vehicle and then forgotten.

It will record your travels in Google Earth format, GPS Exchange format or as raw NMEA data and using software such as Google Earth you can then see your trips mapped onto the surface of the earth with a resolution of a few meters.

A great device for off road drivers, sailors, farmers and gray nomads the GPS Tracker can record a lifetime's worth of travelling on a single SD card.

The design for the GPS Tracker was published in the November 2013 issue of Silicon Chip magazine.  This web page briefly describes the device but you will find much more detail in the article.  You can purchase access an electronic version of the November 2013 issue using the above link for AU$8.20 and this small investment is well worth it if you are intending to build the GPS Tracker.

If you are looking for a firmware update, that will be listed in the Downloads section at the bottom of this page.

The GPS Tracker will automatically record your vehicle's movement on an SD card.  It will start recording when power is applied and the record will be closed when the power is removed.  Normally the Tracker is connected to the vehicle's ignition system so that it is powered up every time the vehicle is used.  This means that it will record each movement of the vehicle as a separate file (called a track).

The data can be recorded in any combination of the following formats:

  1. Google Earth KML format. If you have Google Earth installed on your computer you only need to double click on the KML file recorded by the GPS Tracker and the file will open up in Google Earth showing your track over the surface of the Earth. All of the examples in this web page are screen grabs from Google Earth.
  2. GPS Exchange GPX format.  This is an open format used by many mapping applications.  In particular you can use it with software that will use the time stamp in your photographs to add the latitude and longitude of where the photograph was taken.
  3. NMEA data (recorded with a .TXT extension).  This is the raw RMC and GGA records from the GPS module and there are many applications that can use this data in interesting ways.

The SD card can be formatted in FAT16 or FAT32 and can be up to 64GB in size.  With an 8GB card you can typically record about a million kilometres of travel. 

In the downloads section at the bottom of this page there are a number of tracks recorded by the GPS Tracker, so you can download them and try them out with your favourite mapping software.  The images below will also give you an idea of what the output looks like. Here you can see the exact track of the vehicle (in red) as it went through the roundabout.

This image came from Google Earth.

In this camping trip you can see exactly where the group stopped for lunch.

In Google Earth you can click on the yellow marker to get the precise latitude and longitude of the location.

This is an example of a long trip displayed in its entirety.  In Google Earth you can zoom in to see the trip in detail, even to the extent of observing the traffic lane that the vehicle travelled in.

The yellow marker time stamped at 9:36 is an hourly marker added to the track to indicate progress on a long trip.  The time interval for these markers is configurable.

Google Earth allows you to join together many different tracks recorded over many days to make one large track.  You can use this feature to display the whole of your travels, even if it was a three week tour in the country.

You can connect a push button switch to the POI (Point of Interest) input to the Tracker and when it is pressed it will cause the Tracker to do one or more of the following (these are configurable):

  1. A yellow pin will be placed on the KML track with the time and distance from the start.  This can be used to record an interesting location such as a good fishing spot.
  2. An entry will be made in an Excel compatible spread sheet (called LOG.XLS) recording the date/time and latitude/longitude of when the button was pressed.  This will give you a handy record of your points of interested without having to look through all the KML tracks.
  3. An entry will be made in a second Excel compatible spread sheet (called DIARY.XLS).  This spreadsheet will record the date/tine and starting/end latitude/longitude  of every trip.  If the POI button was pressed the distance for the trip will be recorded in the "Business" column otherwise it will be recorded in the "Private" column.  This can be used to justify a tax deduction for business use of a private vehicle.

The Tracker records one file for each trip (ie, when you start the engine and travel more than 100 metres).   To make it easy to locate a particular trip the data is recorded in a number of subdirectories on the SD card. 

At the top level of the SD card (the root) the two spreadsheets (described above) are recorded along with three directories or folders, one for each format (GEARTH, GPX and NMEA).  Within each of these directories there is a second level subdirectory for each month/year.  And within these subdirectories there are multiple files, each containing one trip.  The file name of each trip file contains the day and a sequence number so, for example, the path to the 5th trip on the 10th March 2014 would be:  \GEARTH\2014-03\10--#05.KML

When you place a blank SD card in the Tracker and power it up, it will create a standard configuration file (called TRACKER.TXT) on the card.  This file is read each time the Tracker is powered up and you can edit it (using a plain text editor like Notepad) to suit your requirements.

The following is an example of a configuration file (the comments make it self explanatory):

All components are mounted on a single PCB measuring 137mm by 69mm which fits in a standard instrument case (a detailed parts list is included in the Construction Pack downloadable from below).

The following illustration highlights some of the technical features of the design:

The circuit for the GPS Tracker is shown in the image below (click on the image for a high resolution version).

It consists of three main sections.  The first is the power supply which uses a high efficiency buck converter from Microchip.  Because of the large reservoir capacitor (4700µF) the power supply can maintain the 3.3V power to the processor and SD card for up to 2 seconds after the power has been removed.  This gives the processor plenty of time to flush its buffers and safely close the files on the SD card, even with all possible files open at the same time.

The Tracker is intended to be connected to the vehicle's ignition circuit (ie, 12V when the engine is running).  It can be permanently connected to the fuse block or plugged into a cigarette lighter style outlet.

Click on the image for a high resolution version

The other section of the circuit is the GPS module, Q1 and the SuperCap.  Q1 is is a MOSFET which is used to cut the power to the GPS module and indicator LEDs when power is removed.  This minimises the power drain and allows the 3.3V supply to hold up longer after the ignition has been turned off.  The GPS module is the UP501 from Fastrack and can be purchased from RS Components (part 716-5283) or Element14 (part 2113837).  A six pin header is soldered to the module which is then plugged into a header socket on the PCB.

The GPS Tracker will also work with the EM-408 GPS Module.  This comes with a cable which needs to be soldered to a six pin header which can then be plugged into the PCB (details are in the Construction Pack).  The only problem with the EM-408 is that it does not have an obvious method of mounting it.  However, with a little ingenuity and foam packing material it can be kept securely in place.

The GPS module needs a backup supply to keep its memory alive when the power is removed.  By doing this the module can get a fix much more rapidly (in 10 seconds vs many minutes).  This is accomplished with the 1 farad SuperCap which can provide backup power for up to a week.  If you use the EM-408 you should omit the SuperCap and associated resistor and diode as the EM-408 has its own internal SuperCap.

The third section of the circuit is the microcontroller and the SD card.  The processor is a Microchip PIC32MX250F128B-I/SP which has a 32 bit processor core, 128KB flash and 32KB RAM.  It comes in an easy-to-solder 28 pin package and costs just US$3.80 in one off quantities (direct from Microchip).  At this cheap price there is no point looking at 8 bit or 16 bit processors - the 32 bit processor is just as cheap and has lots more power.

The easiest way to build the GPS tracker is to purchase it as a kit of parts.  These come with the microcontroller pre programmed, a copy of the magazine article and all parts.  They do cost more than sourcing the parts yourself but it is certainly easier.  Jaycar is offering a kit of parts (GPS Data Logger Kit Cat Nbr KC-5525) and will post the kit to anywhere in the world.  At the time of writing they are currently preparing the kit and may not have it immediately listed on their website - so check back regularly.

If you would like to source your own parts (it is not hard) you can get the important components from Silicon Chip magazine.  These include the printed circuit board, the microcontroller pre programmed with the appropriate firmware and some of the more specialised components such as the voltage regulator and inductor.  Follow this link for the Silicon Chip on line shop.

Everything else you can get from your parts bin or purchase over the counter.

The Construction Pack (downloadable from the bottom of this page) contains the full parts list, circuit diagram, firmware, photographs, PCB design files (so that you can get them made yourself) and more.

During construction there are only a few areas where you should be careful:

  • The LEDs need to poke through the holes in the lid.  To get their height correct you should cut a strip of thin cardboard with a width of exactly 20mm and slide it between the legs of the LED while you solder ONE leg of each LED. Then temporarily mount the PCB in the base of the case and bend the legs of the LEDs so that they line up with the holes in the lid when it is lowered into place. When this is correct you can then solder the other leg.
  • Position the crystal a couple of millimetres above the PCB so that the metal case will not short out the solder pads underneath.
  • The voltage regulator and four 10µF capacitors are surface mount devices.  They are not hard to solder but if you need some pointers refer to my web page Surface Mount is Easy.
  • Both the microcontroller and the GPS should be held down in their sockets by a couple of pieces of high density foam glued to the lid of the case.  This is important as otherwise the vehicle's vibration will quickly shake them loose.

When you are experimenting with the Tracker on your workbench be aware that it will only record a track when the vehicle has moved by more than 100 metres. This feature was included so that it did not record unimportant movements like repositioning the vehicle in a car park.

If you are using the two optional inputs (POI and NEW TRACK) then you should note that they are intended to be used with a switch that shorts them to ground. The maximum voltage on these inputs is 3.3V so don't connect them directly to the vehicle's 12V system.   If you want to connect the NEW TRACK input to the ignition circuit use a diode so that the input is only pulled low (not high).

The NEW TRACK input is provided so that the Tracker can be permanently connected to power if required. Then this input, when shorted to ground, will signal that the current trip has finished and, when released, will start the recording of a new track. The advantage of keeping the GPS receiver powered up is that there will be no delay in it getting the current location. Also, because of the efficient power supply design, the Tracker only consumes about 50mA and that level of permanent drain can be acceptable in a vehicle that is driven often.

The POI input uses a programmable pull-up resistor incorporated into the chip to pull the input up to a logic "high" level.  When this input is shorted to ground by a switch the POI will be recorded.  This is not a strong pull-up and with the switch mounted on the dashboard of the vehicle the long wire might pick up noise resulting in false POIs being recorded.  If this happens a 3.3K resistor should be connected between pins 25 and 28 on the microcontroller on the underside of the PCB.  This would provide a strong pull-up that should be immune to noise.

The GPS Tracker can be installed on the dashboard, on the rear parcel shelf or under the dashboard.  In that last location the GPS signal level could be insufficient and in that case the GPS module should be remotely mounted where the signal level is stronger and connected to the Tracker by a six core cable.  If you are using the EM-408 module you can attach an external antenna which will provide a tremendous boost in sensitivity.

Can the tracker run off batteries for portable use?

It could be powered from nine AA cells but that is not very portable.  I plan to produce a portable version (hopefully in the first half of 2014) which will get 20 hours from two AA cells and be small enough to be clipped to a belt.

The voltage regulator (MCP16301T-I/CHY) is in very short supply.  Can you recommend an alternative?

You could use the Microchip MCP16301T-E/CH with no change to the circuit or the Linear LT1933ES6 which requires that a second 27K resistor be wired in parallel with the current 27K resistor (so that the combined resistance is 13.5K).  Both have been tested and work fine.

I am trying to use the EM-408 GPS module from and it just refuses to work.

There is a variant of the EM-408 that has an RS-232 output and you may have one. Check my page on the EM-408.

Does the Tracker compensate for daylight saving?

No, you need to manually change the TZ configuration setting to adjust for daylight saving.

I have a solid fix and no errors, but any track on the card is zero bytes in size.

A track with a length of zero bytes is an indicator that the microcontroller was not able to close the files before the power failed. Normally power to the microcontroller is held up for about 2 seconds after the 12V input drops to zero which is plenty of time to close the files. Your problem could be because the power supply is faulty or the 4700 µF capacitor is faulty or not present.

I have checked the power supply and the 4700 µF capacitor but I still get zero length files.

Another possibility is that the 12V input voltage to the tracker does not fall to zero promptly when the ignition is turned off. Normally there is other circuitry connected to the 12V circuit in a vehicle that will pull it low but if the power to the tracker is just disconnected the power input will float and the microcontroller will not see this input fall to zero - as a result it will not close the files before the power fails resulting in zero length files.  The fix for this is to wire a 2.2K resistor across the power input to the tracker.

When the vehicle is stationary (eg, at a red light) the track appears to move about over a small distance.

This is due to the uncertainty in the GPS position data due to atmospheric variations that delay the signal from the GPS satellites.  It is normal and is less apparent when the received signal level is high.

An updated version of the firmware (V1.2) is listed in the Downloads section below.  It adds support for the PAM-7Q GPS module (the PAM-7Q is a drop in replacement for the UP501), it adds the ability to configure the distance for ignoring small movements and it fixes one bug which can cause corruption of the SD card file system.

None of these are critical so you do not need to update the firmware if they are not important to you.

Due to an issue in the bootload firmware in V1.1 this update can only be loaded via a PIC32 programmer. Also, this version does not include a bootloader, so subsequent versions will also need to be loaded via a PIC32 programmer.  These are very cheap and easy to use - see this page for details..

To save you from having to check this web page all the time I can also send you an email when an update is available.  To enable this please enter your email address in the box below and click on Submit.  Your address will be held confidential and will only be used to notify you of an update.

Firmware V1.2 update (requires a PIC32 programmer to load - NOT the bootloader) DOWNLOAD
Examples of data recorded by the GPS Tracker (KML, GPX and NMEA files) DOWNLOAD
Windows Serial Port Driver (for connection to the GPS Tracker via USB - Windows only) DOWNLOAD
GPS Tracker Construction Pack (circuit diagram, parts list, firmware, etc) DOWNLOAD
Firmware Source Code V1.2 (requires MPLAB X and XC compiler - free from Microchip) DOWNLOAD

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