The VL502 OBDII GNSS vehicle tracker is a Green-Gps compatible GPS tracker built for corporate fleets, usage-based insurance (UBI) programs, dealer monitoring and individual vehicle oversight. This compact plug-and-play OBDII unit delivers real vehicle telemetry — VIN, engine speed, coolant temperature, accumulated mileage, fuel consumption stats, battery voltage and ACC/ignition status — over 4G LTE with 2G fallback, enabling fast, reliable real-time tracking and fleet management through the Green-Gps platform.
Designed for quick installation and robust day-to-day operation, the VL502 combines dual GNSS positioning (GPS + BDS) with a built-in accelerometer and support for common onboard diagnostic protocols (K-Line and CAN bus). When paired with Green-Gps, the VL502 provides the telemetry and event data needed for anti-theft alerts, driver behavior reporting, fuel monitoring and operational optimization without complex wiring or prolonged setup.
Key Highlights
- Plug-and-play OBDII installation for fast deployment across vehicle fleets.
- Green-Gps compatible for seamless real-time tracking and centralized fleet management.
- Rich vehicle telemetry: VIN, engine speed, coolant temperature, mileage, fuel consumption and battery voltage.
- 4G LTE communication with 2G GSM fallback and multiple regional band variants for broad coverage.
- Dual GNSS (GPS & BDS) with high accuracy (<2.5 m CEP) and fast time-to-first-fix.
- Built-in accelerometer for driving behavior detection (over-speed, harsh braking/acceleration/cornering, collision).
- Compact, rugged form factor suitable for demanding vehicle environments and long operating temperature range.
- Supports standard OBD protocols (ISO 9141-2, ISO 14230-4 KWP, ISO 15765-4 CAN, SAE J1939) for accurate diagnostics and fault code retrieval.
How It Works with Green-Gps
The VL502 sends GNSS positions and OBDII-sourced telemetry to Green-Gps over LTE (with automatic 2G fallback), where that data is processed into live maps, alerts, and reports. Green-Gps ingests the device’s diagnostic parameters and event signals to enable real-time tracking, predictive analytics and configurable notifications for fleet managers and insurance telematics teams.
- Real-time location and telemetry updates delivered to Green-Gps for live tracking and historical playback.
- VIN, engine speed and diagnostic trouble codes (DTCs) for maintenance scheduling and remote diagnostics.
- Fuel consumption and accumulated mileage reporting to support fuel monitoring and UBI calculations.
- Ignition/ACC status, engine idling and device removal events for operational and anti-theft alerts.
- Driving behavior and accelerometer events (over-speed, collision, harsh acceleration/braking/cornering) for safety scoring and driver coaching.
Technical Overview
| Connectivity | 4G LTE with 2G GSM fallback; supports multiple regional band variants |
|---|---|
| Bands | Multiple regional LTE/2G band variants (model dependent) |
| Power & Battery | 9–36 V DC vehicle input; internal backup battery 50 mAh / 3.7 V |
| Interfaces | OBDII plug-in; supports K-Line and CAN bus; OBD protocols: ISO 9141-2, ISO 14230-4 KWP, ISO 15765-4 CAN, SAE J1939 |
| GNSS | Dual GNSS: GPS + BDS; positioning accuracy <2.5 m CEP; avg. hot start ≤1 s, avg. cold start ≤32 s |
| Bluetooth | — (no Bluetooth sensors specified) |
| Data & Storage | Nano-SIM slot; onboard memory 8 + 16 MB for storage and processing |
| Diagnostics & Sensors | Built-in accelerometer for motion and impact detection; LED status indicator (single blue) |
| Form Factor & Environment | Dimensions 61.0 × 52.0 × 26.0 mm; weight 55 g; operating temperature -20 °C to 70 °C; humidity 5%–95% non-condensing |
Use Cases
- Fleet management: centralized real-time tracking, route replay, driver scoring and maintenance alerts for commercial fleets.
- Usage-Based Insurance (UBI): accurate mileage, fuel consumption and driving behavior data for risk-based premiums and policy analytics.
- Dealer and service monitoring: VIN-based diagnostics and fault code retrieval to streamline service preparation and vehicle handover.
- Anti-theft and recovery: ignition/ACC detection, geo-fence alerts and device removal warnings to support quick response and vehicle recovery workflows.
- Driver safety programs: accelerometer-driven alerts and event logging for coaching and accident reconstruction.
Why Choose This Tracker with Green-Gps
The VL502 pairs practical OBDII convenience with the telemetry depth required by modern fleet and insurance programs. Its plug-and-play form factor reduces installation time and service disruption, while the device’s support for standard OBD protocols ensures accurate VIN, mileage and fault code reads. When integrated with Green-Gps, the VL502 becomes a reliable source of real-time tracking, telemetry and behavior data—enabling fuel monitoring, ignition and idling insight, anti-theft notifications and rich fleet reporting. The combination of LTE connectivity with 2G fallback, high-accuracy dual GNSS positioning and onboard accelerometer makes the VL502 a compact, cost-effective choice for operators who need dependable vehicle data and scalable fleet management through a Green-Gps compatible GPS tracker.
Set Up VL502
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,8888,0#
or
U1drJVN3eHWEfdK6Yl48NisRtnI5Gu - Set the update interval every 60 seconds
TIMER,60#
or
STztIE4CDY4I - Enable GPRS mode
GPRSON,1#
To check parameter settings GPRSSET#