GDDT08L (4G) Vehicle GPS Tracker — OBD Port, Easy DIY Install

GPSDD GDDT08L (4G) — pinpoint your car without phoning around

Tired of calling around to find out where the car is? The GPSDD GDDT08L (4G) plugs into the OBD2 port and shows your car's location in real time, 24/7, on your phone. Easy to install yourself — no wiring, no technician.

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Highlights and features

• Accurate location over 4G: coverage across Thailand for smooth, up-to-date location
• Live location 24/7: open the app to see where the car is and how fast it's going, with up to 90 days of history
• Easier to install than you think: plug it into the OBD2 port yourself, no technical skills needed, with step-by-step videos to follow
• Street View 360°: see the street around where the car is parked, in every direction
• Full set of alerts: speeding, entering or leaving a set area (geofence), and when the device is unplugged from the port
• Google Maps link: navigate to your car easily
• Detailed reports: view trip data and driving behavior, and export to Excel for easy reporting
• Built-in 150 mAh backup battery: keeps sending its location for a while if the car's power is cut or the device is removed
• Waterproof for any weather: silicone-sealed housing, so rain and water are no problem

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Who is it for?

• Private and family cars: look after the family car without worrying about theft. Set a geofence around your home and get an instant alert if the car leaves the area
• Car rental businesses: manage and keep track of every vehicle in your fleet efficiently
• Transport businesses: check routes, reduce risk and keep an eye on driving behavior
• Fits almost every car with an OBD2 port (most cars from 2008 onwards)

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How to install (1 minute)

1. Find the OBD2 port: usually under the steering wheel on the driver's side or under the console (on some cars it's behind a small cover)
2. Plug in the device: push the GDDT08L firmly into the OBD2 port. To place the unit somewhere else, use an OBD2 extension cable (optional accessory) and route it where you like
3. It starts automatically: the device takes power from the OBD2 port (12–24 VDC), the LED lights up and it starts searching for a signal. The first time, park in an open area for 5–10 minutes so it can pick up GPS and the network

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Quick start guide

Step 1: Prepare the SIM

1. Use a registered SIM with an active data package and remaining validity
2. Insert the SIM into the slot on the device before plugging it into the OBD2 port

Step 2: Log in to the GPSDD app

1. Download the free GPSDD app from the App Store / Play Store and allow the requested permissions
2. Choose to log in with your device ID (ID Login)
3. Enter the username/password from the sticker on the box, accept the policy and tap Log in

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Real-world examples

• Theft protection: set a geofence around your home or workplace. If the car leaves the area when it shouldn't, you get an instant alert on your phone and can open the app to see its live location and act quickly
• Rental fleet management: see every vehicle on one screen, know where each one is, and prevent use outside the rental terms
• Transport planning: export trip reports to Excel and review routes, times and speeds to plan and evaluate your work
• Know if the device is removed: if someone tries to unplug the GPS from the port, you're alerted right away

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Warranty and precautions

• Warranty terms: please read the usage and warranty terms for your own benefit  Warranty terms page

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Lawful use policy

We support using GPS trackers only to keep track of your own vehicles and property, to prevent loss and for fleet management. We do not support any use that violates privacy or the law, and we will cooperate with the authorities in cases of misuse.

Are there costs after purchase?

The tracking app is free for the first year, then 250 baht/year · SIM service is charged separately, depending on the package you choose