4G OBD Port GPS Tracker with Built-in Backup Battery — GTB9
GTB9 integrates GPS/BeiDou positioning, 4G communication, and built-in antennas in a plug-and-play OBD tracker. It provides real-time location, speed, route history, geofencing, and alarms for speeding, vibration, and power loss.

Universal Interface
The standardized 16-pin OBD-II interface supports plug-and-play installation on compatible vehicles without cutting or modifying wiring, making deployment fast and convenient.
4G Network
A built-in 4G communication module provides stable, high-speed data transmission. In open environments, GPS/BeiDou positioning accuracy is within 10 meters for real-time vehicle location feedback.


Strong Environmental Adaptability
GTB9 operates from -25°C to +75°C and can be stored from -40°C to +85°C, helping maintain stable performance across demanding vehicle environments.
Technical Specifications
| Specification | GTB9 |
|---|---|
| Operating Current | 29mA @ 12V (Standby Current: 4mA) |
| Communication Mode | TCP |
| Backup Battery | 55mAh |
| Vehicle Status Detection | Power-off alert / low-voltage alert / over-speed alarm |
| Other Functions | Blind-area data supplement / turning-point data supplement / remote upgrade |
Main Features
Low Power Consumption
Real-time Positioning
Vibration Alarm
Historical Playback
GTB9 OBD GPS Tracker — Applicable Scenarios

Private Car Theft Prevention

Corporate Fleet Management

Vehicle Rental & Loan Monitoring
Bulk GPS Tracking Devices Ready-to-Ship
GreatWill specializes in GPS tracker wholesale and maintains regular stock of market-proven devices. We support OEM, ODM, and customization services for fleet operators, distributors, and resellers.
