The VT900-G 3G GPS tracker from VT (model VT900-G) is a professional-grade vehicle tracking device engineered for reliable Green-Gps compatible deployment. Designed for fleet managers, rental operators, and vehicle security applications, the VT900-G combines high-sensitivity GNSS positioning with UMTS/HSDPA and GSM/GPRS cellular connectivity to deliver accurate real-time tracking, event alerts, and telemetry to Green-Gps's platform, mobile apps, or SMS clients.
Built for robust vehicle telematics, the VT900-G supports OBD/CANBUS diagnostics, multiple external sensors, RFID readers via RS232, and optional ultrasonic or capacitive fuel sensors. Its internal flash memory stores coordinates during network outages so Green-Gps receives continuous trip history once connectivity is restored—making this GPS tracker a practical choice for anti-theft protection, fuel monitoring, and fleet management at scale.
Key Highlights
- Green-Gps compatible for seamless integration into real-time tracking and fleet management workflows.
- High-sensitivity GPS + Beidou positioning (SiRF-Star IV chipset) for typical 2.5 m position accuracy and 0.1 m/s velocity accuracy.
- UMTS/HSDPA and GSM/GPRS cellular connectivity for broad 3G/2G coverage and reporting to server platforms, apps, or SMS.
- Extensive I/O and peripherals: OBD/CANBUS, RS232 ports for RFID/MSR, 3 digital inputs / 2 digital outputs, and analog inputs for sensors.
- Built-in 8MB flash memory buffers tracking data offline; 500mAh backup battery maintains operation during power interruption.
- Supports fuel monitoring options (capacitive and ultrasonic sensors) and temperature sensors for cold-chain logistics.
- More than 37 alarm/event types for driver behavior monitoring, anti-theft alerts, and safety protection.
How It Works with Green-Gps
When deployed with Green-Gps, the VT900-G forwards location, telemetry, and event data to Green-Gps’s servers using cellular networks. Green-Gps ingests GNSS fixes, CANBUS diagnostics, and sensor readings to provide live tracking, geofencing, and standardized reports for fleet management and anti-theft monitoring. The device’s local flash memory ensures no tracking gaps: queued records are uploaded to Green-Gps when the network is available again.
- Real-time location and telemetry updates to Green-Gps via UMTS/HSDPA or GSM/GPRS.
- Ignition, door, and alarm status through configurable digital inputs and event rules for driver behavior monitoring.
- Fuel monitoring supported via OBD/CANBUS and optional ultrasonic or capacitive fuel sensors for accurate fuel consumption data.
- Remote immobilizer / engine shut-off capability using digital outputs for anti-theft and fleet control actions.
- Temperature sensor inputs for cold-chain cargo monitoring and alerts in Green-Gps dashboards.
- Buffered data upload: internal flash stores coordinates and events during network outages and syncs with Green-Gps when online.
Technical Overview
| Connectivity | UMTS / HSDPA and GSM / GPRS cellular communication (3G/2G) |
|---|---|
| Bands | UMTS/HSDPA and GSM/GPRS frequency bands for global cellular coverage (specific band variants depend on model) |
| Power & Battery | Wide input 9V–36V (1.5A); internal 500mAh backup battery; typical consumption ~55 mA/h; ~30 hours power-saving mode (≈7.5 hours normal) |
| Interfaces | 3 digital inputs, 2 digital outputs, 2 analog inputs, up to 3 RS232 ports (supports RFID/MSR readers), OBD/CANBUS |
| GNSS | GPS + Beidou using SiRF-Star IV chipset; L1 1575.42 MHz; 20-channel all-in-view tracking; typical position accuracy ~2.5 m (2D RMS); velocity accuracy 0.1 m/s; sensitivity -159 dB |
| Bluetooth | Not specified in product documentation (device supports external wired sensors and RS232 peripherals; Bluetooth sensors are not listed) |
| Remote Management | Track via SMS, mobile app, or web platform; data buffered in internal flash. FOTA not specified. |
| Memory | 8 MB internal flash for offline data storage |
| Form Factor | Compact vehicle tracker: 65 × 61 × 26 mm; 90 g; operating -20° to 65°C; humidity 5%–95% non-condensing |
Use Cases
- Fleet management and dispatch — real-time tracking, route history, and driver behavior alarms aggregated in Green-Gps dashboards.
- Anti-theft protection and remote immobilization — instant alerts plus engine shut-off via outputs for stolen vehicle response.
- Fuel monitoring and telemetry — OBD/CANBUS and optional ultrasonic/capacitive sensor inputs to detect fuel theft and optimize consumption.
- Cold-chain and temperature-sensitive cargo — external temperature sensors integrated through device inputs for continuous monitoring and alerts.
- Access control and driver identification — RFID/MSR reader support via RS232 for logged access events and driver validation.
Why Choose This Tracker with Green-Gps
Choosing the VT900-G as a Green-Gps compatible GPS tracker delivers a balance of accuracy, durability, and integration readiness. Its SiRF-Star IV GNSS performance and support for GPS + Beidou provide dependable real-time tracking, while cellular connectivity and internal flash safeguard telemetry continuity. Built-in interfaces (OBD/CANBUS, RS232, analog/digital I/O) let fleets capture rich vehicle diagnostics and sensor data—fuel levels, temperature, and access events—so Green-Gps can generate actionable reports and alerts.
For fleet operators and security teams focused on anti-theft measures, fuel monitoring, and scalable telemetry, the VT900-G offers a compact, vehicle-grade option that integrates cleanly with Green-Gps’s real-time tracking platform. Its comprehensive event set, power resilience, and peripheral support make it well-suited to mixed-vehicle deployments that require reliable reporting and remote control features without sacrificing data integrity during network interruptions.
Set Up VT900-G
To set the tracker send the following commands by SMS messages
- Reset factory settings
FACTORY# - Set the time zone UTC-0
GMT,E,0# - Set the operator APN
APN,{{apn}},{{apnu}},{{apnp}}# - Set the GPRS server
SERVER,1,d.plaspy.com,8888#
or
3uhkMBNcWyyqSswhunCYgPg6Q43L - Set the update interval every 60 seconds
TIMER,60#
To check parameter settings PARAM#