PS21 OBD2 4G GPS Tracker for Car Fleet Vehicle Diagnostics
PS21 is a compact OBD2 plug-and-play GPS tracker designed for real-time vehicle tracking, diagnostics, and fleet monitoring. Equipped with GSM/GPRS communication and GPS/BDS positioning, it enables accurate location tracking, geo-fencing, overspeed a...
About PS21 OBD2 4G GPS Tracker for Car Fleet Vehicle Diagnostics
The PS21 Vehicle OBD2 GPS Tracker is a smart telematics device that connects directly to the vehicle’s J1962 OBDII port for instant installation. It supports 2G GSM communication and integrates MT2503 communication module with ARM STM32 processor for reliable data transmission and positioning accuracy up to 10 meters. The device supports real-time tracking, vehicle fault diagnosis, track playback, overspeed alarm, and geo-fencing features. With a built-in 60mAh backup battery and wide voltage support (9V–35V), it ensures continuous monitoring even during power fluctuations. Designed with a durable ABS plastic housing, the PS21 is suitable for both personal and commercial fleet applications.
- Real-time GPS vehicle tracking
- Geo-fence alert notifications
- Overspeed alarm monitoring
- Track history playback
- Vehicle fault diagnosis (OBD data detection)
Key highlights
Product features
Evaluate these capabilities against your route profile, risk controls, and team workflows.
- Real-time GPS vehicle tracking
- Geo-fence alert notifications
- Overspeed alarm monitoring
- Track history playback
- Vehicle fault diagnosis (OBD data detection)
- Plug-and-play OBDII installation
- Built-in GSM & GPS antenna
- LED status indicators (GSM & GPS)
- Sleep mode for low power consumption
- Wide operating voltage support (9V–35V)
Technical specifications
Use this table for compatibility checks, deployment planning, and integration review.
| Power Supply Mode | U-batt Battery |
|---|---|
| Operating Voltage | DC 9V - 35V |
| Working Current | 12V / 40mA - 80mA |
| Sleep Current | 12V / 5mA - 15mA |
| Built-in Battery | 60mAh (3.7V polymer battery) |
| Operating Temperature | -20°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Operating Humidity | 5% - 95% |
| Communication Module | MT2503 |
| Communication Frequency | GSM 850/900/1800/1900 MHz |
| SIM Card Type | Micro SIM Card |
| GPS Chip | ARM STM32 |
| Positioning Module | MT2503 GPS/BDS |
| Cold Start Time | 32s |
| Hot Start Time | 1s |
| Position Accuracy | ≤10 meters (-162dBm sensitivity) |
| Antenna | Built-in GSM & GPS Antenna |
| CAN Interface | 1 |
| K-Line Interface | 1 |
| Dimensions | 47mm × 20mm × 43mm |
| Material | ABS Plastic |
| Device Weight | 41g |
| Network | 2G GSM (850/900/1800/1900 MHz) |
| Positioning System | GPS + BDS |
| Positioning Accuracy | ≤10 meters |
| Hot Start | ≤5 seconds (open sky) |
| Cold Start | ≤35 seconds (open sky) |
| Operating Temperature (Manual) | -20°C to +55°C |
| Input Voltage | 9V - 35V |
| Backup Battery | 60mAh 3.7V Polymer |
| Data Interfaces | CAN Bus, K-Line |
| Installation Type | J1962 OBDII Universal Interface |
| Weight | 41g |
| Housing Material | Industrial-grade ABS |
Key features
- Real-time GPS vehicle tracking
- Geo-fence alert notifications
- Overspeed alarm monitoring
- Track history playback
- Vehicle fault diagnosis (OBD data detection)
- Plug-and-play OBDII installation
- Built-in GSM & GPS antenna
- LED status indicators (GSM & GPS)
- Sleep mode for low power consumption
- Wide operating voltage support (9V–35V)
Downloads & documentation
Frequently asked questions
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View productWritten by
Pictor Telematics Product Documentation Team · Specifications and Deployment Guidance
Reviewed by
Mr. Rajesh Kumar · Founder Director & Chief Executive Officer
Published
Jan 15, 2024
Last reviewed
Apr 10, 2026
Validation approach
Product information is reviewed against technical specifications, installation constraints, and operational usage patterns from deployments since 2014.