The TLW2-2BL is a compact, hardwired GPS tracker designed for demanding vehicle and powered-asset deployments. Green-Gps compatible out of the box, this 4G LTE (LTE-M CAT-M1) tracker brings high-frequency real-time tracking, robust offline buffering and integrated environmental sensing to fleets, logistics providers and cold‑chain operators who need reliable position and telemetry data.
Built for straightforward integration with Green-Gps, the TLW2-2BL pairs LTE-M connectivity with BLE 5.0 accessory support, ignition detection and a relay output for remote control. Whether you need precise location updates every few seconds, anti-theft alerts or temperature and door monitoring via Bluetooth sensors, this small-form tracker delivers the core telemetry and remote control features fleet management teams expect.
Key Highlights
- Green-Gps compatible GPS tracker with LTE-M (CAT‑M1) connectivity and 2G/NB2 fallback for broad coverage and resilient data delivery.
- Real-time tracking with updates as frequent as every 3 seconds and onboard buffering of up to 49,000 location points for gap-free history during outages.
- Integrated BLE 5.0 support to pair temperature, humidity and door sensors plus wireless relays — ideal for cold‑chain monitoring and environmental telemetry.
- Ignition detection and relay output enable remote control actions, supporting anti-theft workflows and immobilizer-style functions via remote output control.
- High‑accuracy GNSS using a MediaTek high‑gain receiver (GPS+GLONASS+Galileo+Beidou) with autonomous position accuracy under 2 meters.
- Comprehensive alarms and event detection including power disconnection, low backup battery, speeding, towing, crash detection and network jamming.
- Compact, hardwired form factor (IP65) with wide input range (7 V–60 V DC), 200 mAh Li‑Polymer backup battery and extreme temperature operation for vehicle and trailer installs.
How It Works with Green-Gps
The TLW2-2BL connects to Green-Gps using standard IP and messaging protocols to stream GNSS positions, sensor telemetry and event alerts. Green-Gps ingests the device's high-rate location updates, BLE accessory sensor readings and alarm states to present live maps, telemetry dashboards and automated reports for fleet management and cold-chain monitoring.
- Real-time location and telemetry updates — frequent position fixes (as fast as every 3 seconds) and historical replay from buffered points.
- Ignition and alarm status — ignition detection and digital input/external sensors report on vehicle state changes to Green-Gps for fleet workflows.
- Fuel monitoring — the unit transmits telemetry and supports integrations; when paired with appropriate fuel or CAN sensors, Green-Gps can visualize fuel consumption and alerts.
- Remote immobilizer and control — relay output and remote output control can be used to implement immobilizer-style or engine-interrupt functions through Green-Gps-triggered actions.
- Bluetooth sensors — BLE 5.0 accessory support enables temperature, humidity and door sensors to be forwarded to Green-Gps for cold-chain and door-open monitoring.
Technical Overview
| Connectivity | LTE‑M (CAT‑M1) with 2G fallback and NB2; communication over TCP, UDP, MQTT and SMS |
|---|---|
| Bands | LTEM (CAT‑M1) global bands with 2G fallback and NB2 (model-specific band support) |
| Power & Battery | Operates from 7 V to 60 V DC; internal Li‑Polymer 200 mAh backup battery for disconnection alerts |
| Interfaces | 1 digital input, 1 digital output, ignition detection, relay output, network & GNSS indicator LEDs |
| GNSS | MediaTek high‑gain GNSS receiver with parallel GPS + GLONASS + Galileo + Beidou; autonomous position accuracy < 2 m |
| Bluetooth | BLE 5.0 for temperature/humidity/door sensors and wireless relays (compatible with TOPFLYtech TSTH1-B, TSDT1-B, TSR1-B and other BLE accessories) |
| Remote Management | FOTA support; remote output control and data roaming control features |
| Form Factor | Compact hardwired unit; IP65 waterproof rating; dimensions 102.5 × 42.5 × 12 mm; weight 55 g |
| Environmental & Sensors | 6‑axis accelerometer for harsh driving and crash detection; operating temperature -30°C to +80°C (storage -40°C to +85°C) |
| Data Handling | Onboard buffer up to 49,000 location points; event alarms for power loss, low battery, speeding, towing, crash and jamming |
Use Cases
- Fleet management — continuous GPS tracker data, driving behavior telemetry and ignition events feed Green-Gps dashboards for operational visibility and route optimization.
- Anti-theft and immobilization — real‑time alerts for towing, power disconnection and jamming plus relay control for remote immobilizer workflows.
- Cold-chain logistics — BLE temperature and humidity sensors paired to the unit send environmental telemetry to Green-Gps for compliance and spoilage prevention.
- Trailer and container monitoring — compact, hardwired installation with long buffer memory provides location persistence and event alerts for detached assets.
- Post-incident analysis — 6‑axis accelerometer and crash detection capture event data for accident reconstruction and driver coaching via Green-Gps reports.
Why Choose This Tracker with Green-Gps
The TLW2-2BL delivers a balanced mix of compact installation, precise GNSS positioning and extended telemetry through BLE sensors, making it a strong choice for teams deploying Green-Gps across mixed fleets and cold‑chain assets. Its LTE‑M connectivity with 2G/NB2 fallback, deep onboard buffering and frequent update capability ensure Green-Gps receives reliable, high-resolution tracking data even in challenging coverage areas.
For operators who value anti-theft features, telemetry extensibility and remote control, the TLW2-2BL’s relay output, ignition detection and remote output control provide the hooks necessary to implement immobilizer and alerting logic inside Green-Gps. Combined with FOTA and standard protocols (TCP/UDP/MQTT/SMS), deployment and lifecycle management is straightforward for large-scale fleet management, logistics and temperature-sensitive asset monitoring.
Set Up TLW2-2BL
To set the tracker send the following commands by SMS messages, the sample setup the device password is 89uI, this password is the default
- Set the time zone UTC-0
GMT,89uI,0# - Set the operator APN
APN,89uI,{{apn}},{{apnu}},{{apnp}}# - Set the GPRS server
IP,89uI,54.85.159.138 8888# - Set the update interval, 60 seconds
TIMER,89uI,60:60:0:0#