The T303 vehicle GPS tracker is a professional-grade telematics device designed for fleet management, anti-theft protection and driver behaviour monitoring. Green-Gps-compatible out of the box, the T303 brings reliable real-time tracking, configurable geo-fencing and remote immobilization options to organisations that need accurate location, safety alerts and up-to-date telemetry for vehicles of any size.
The T303 builds on the proven T301 platform and adds a u-blox 6M GNSS module, quad-band GSM/GPRS, FOTA support and a comprehensive set of inputs and outputs for ignition detection, engine control and sensor telemetry. When paired with Green-Gps, the T303 delivers actionable reports, live tracking and emergency alerts that simplify fleet operations, anti-theft workflows and driver profiling.
Key Highlights
- Green-Gps compatible for seamless integration into real-time tracking and fleet management dashboards.
- Quad-band GSM with GPRS class 12 ensures wide cellular coverage for consistent telematics data.
- u-blox 6M GNSS chipset with A-GPS delivers high-sensitivity positioning and sub-3 m accuracy in typical conditions.
- Internal immobilizer and a digital engine-control output support remote immobilization and anti-theft workflows.
- Multiple tracking modes (time, distance, course, status) and configurable geo-fences (circle, rectangle, polygon).
- Built-in 3-axis accelerometer and seven types of driver behaviour detection for safety and driver profiling.
- Analog input for fuel or temperature sensors plus vehicle battery monitoring for telemetry and fuel monitoring use cases.
- FOTA (firmware update over GPRS), auto APN and time zone identification for reduced maintenance overhead.
How It Works with Green-Gps
Connecting the T303 to Green-Gps is designed to be straightforward: the device transmits GNSS fixes and telemetry over GPRS while Green-Gps ingests the data stream, applies rules, and surfaces real-time location, alarms and reports. Green-Gps's platform interprets T303 events (ACC, SOS, immobilizer, geo-fence breaches and driver behaviour alerts) so fleet managers receive timely notifications and can act immediately.
- Real-time location and telemetry updates — GNSS positions and vehicle telemetry streamed over GPRS for live maps and history playback.
- Ignition (ACC) detection and engine status — ACC input enables trip segmentation and ignition-based reports.
- SOS button emergency alerts — immediate notification in Green-Gps when SOS is triggered.
- Remote immobilizer / engine cut — use the device’s digital output under Green-Gps control for anti-theft immobilization workflows.
- Fuel monitoring and analog sensors — analogue input supports fuel or temperature probes for telemetry and fuel monitoring dashboards.
- Driver behaviour and safety events — seven built-in behaviour detections plus accelerometer readings feed Green-Gps’s driver scoring and alerts.
Technical Overview
| Connectivity | GSM quad-band 850 / 900 / 1800 / 1900 MHz with GPRS multi-slot class 12 |
|---|---|
| Bands / Receiver Sensitivity | GSM receiver sensitivity Class II RBER 2% (-107 dBm) |
| GNSS | u-blox 6M chipset with A-GPS; autonomous sensitivity -147 dBm, hot start -160 dBm, tracking -162 dBm; position accuracy <3 m (autonomous), ~2.0 m (SBAS) |
| TTFF | Cold start ~25 s (open sky with A-GPS), warm <25 s, hot <1 s |
| Power & Battery | Operating voltage 8 V–32 V DC; internal backup Li-Pol 3.7 V 250 mAh; power consumption ~70 mA (active), ~5 mA (sleep), max <250 mA |
| Interfaces | Micro USB (config/debug), RS232 UART, 1 digital output (engine control), 2 digital inputs (ACC and SOS), 1 analog input for fuel/temperature sensors; external GPS/GSM antenna connectors supported |
| Sensors | Built-in 3-axis accelerometer (±2g/±4g/±8g/±16g), vehicle battery voltage monitoring, backup battery voltage, temperature sensor |
| Memory | Onboard memory ~8 Mb (approx. 15,000 records) |
| FOTA & Remote Management | Firmware update over GPRS (FOTA), auto APN configuration and time zone identification |
| Form Factor & Environmental | Dimensions 85 × 58 × 22 mm, weight ~90 g; operating temp -30 °C to +80 °C (without battery), storage -40 °C to +85 °C |
| Geo-fencing | Supports up to 5 geo-fences: circles, rectangles and polygons (up to 32 points) |
| Bluetooth | No built-in Bluetooth specified; note Green-Gps can integrate wireless sensor inputs if required via supported gateways |
Use Cases
- Fleet anti-theft and remote immobilization — immediate tracking plus engine cut via the digital output and internal immobilizer.
- Driver behaviour monitoring and safety — seven behaviour detections and accelerometer data for speeding, harsh braking and cornering analysis.
- Fuel monitoring and telemetry — analog input for fuel sensors and vehicle battery monitoring to detect fuel loss or anomalies.
- Roadside assistance and emergency response — SOS button and real-time location feed to dispatch teams through Green-Gps.
- Vehicle profiling and compliance — configurable tracking modes and geo-fences support route verification, compliance reporting and vehicle utilization studies.
Why Choose This Tracker with Green-Gps
The T303 is engineered for organisations that require dependable, professional telematics. Its combination of a high-sensitivity u-blox GNSS module, quad-band GSM/GPRS communications and robust I/O makes it an excellent match for Green-Gps's platform. You get accurate real-time tracking, configurable geo-fencing, driver behaviour analytics and remote immobilization — all manageable within Green-Gps for centralized fleet control.
Operational advantages include reduced maintenance through FOTA, flexible sensor inputs for telemetry and fuel monitoring, and built-in safety features such as SOS and ACC detection. Together with Green-Gps’s dashboards, alerts and reporting, the T303 provides a complete solution for fleet management, anti-theft protection and telemetry-driven operational improvements.
Set Up T303
Use with a tracker
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Set the Operator APN
CountryCarrierAPNinternet.comcel.com.coUserCOMCELWEBPasswordCOMCELWEB
- Check your tracker clock setup is set UTC-0 or GMT. (The most trackers come from the factory on UTC.)
- For most devices you should use IMEI (International Mobile Equipment Identity) number as unique identifier. However, some devices have vendor specific unique identifier, for example TK-103 devices use 11-digit identifier.
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Set Up the IP and port on your tracker: (automatic detect tracker's protocol.)
IP 54.85.159.138 Port 8888 - Add on your Account on devices with the IMEI or unique ID.