The ST4505 LTE Cat M1 OBD-II GPS tracker from a proven telematics vendor is a plug-and-play device designed for modern fleet management and vehicle telematics. Plaspy compatible out of the box, the ST4505 delivers continuous GNSS-based GPS tracking, vehicle diagnostics via the J1962 OBD-II port, and telemetry that supports real-time tracking, driver behavior analysis, and rapid incident response.
Built for reliable in-vehicle operation, the ST4505 supports LTE Cat M1, NB‑IoT and fallback 2G networks, includes GPS+GLONASS with SBAS augmentation, and a rechargeable backup battery to maintain reporting during main power loss. Available variants (ST4505T and ST4505DO) add Bluetooth sensor support and other optional features such as jamming detection to extend anti-theft and telemetry capability when paired with Plaspy.
Key Highlights
- Plaspy compatible plug-and-play OBD-II installation for fast fleet rollouts and minimal downtime.
- Multi-network connectivity (LTE Cat M1, NB‑IoT and 2G fallback) for wide area coverage and cost-efficient data transport.
- High-accuracy GNSS (GPS + GLONASS) with SBAS support and typical location accuracy of about ±3 m CEP for precise real-time tracking.
- Comprehensive vehicle telemetry via J1962 OBD-II (J1850, ISO 9141-2, ISO 14230, ISO 15765-4/CAN) enabling diagnostics, DTC reporting and fuel/engine data where available from the vehicle.
- Built-in 3-axis accelerometer and 3-axis gyroscope (BMI160) for crash reconstruction, event detection and driver behavior scoring.
- Rechargeable 3.7 V, 350 mAh backup battery for essential reporting during main power loss and increased anti-theft resilience.
- OTA firmware upgrade (remote firmware/OTA) and optional jamming detection and Bluetooth on the ST4505T variant for Bluetooth sensors and beacons.
How It Works with Plaspy
The ST4505 integrates with Plaspy by sending GNSS fixes, vehicle OBD-II telemetry and sensor events over cellular networks to the Plaspy backend. Plaspy ingests location and diagnostic streams for real-time tracking, automated alerts and historical reports. Data flows and update rates are configurable within Plaspy to balance responsiveness and data costs for fleet management applications.
- Real-time location and telemetry updates sent via LTE Cat M1/NB-IoT or fallback 2G.
- Crash and harsh-event detection using the built-in accelerometer and gyroscope for immediate alerts and incident reconstruction.
- Vehicle diagnostics and DTC reporting from OBD-II PIDs, enabling preventive maintenance and telemetry such as fuel monitoring where the vehicle exposes that PID data.
- Backup battery-backed reporting during main power loss to maintain connectivity and anti-theft notifications.
- Optional Bluetooth sensor support (ST4505T) for temperature, door sensors or BLE beacons when used with compatible Plaspy workflows.
Technical Overview
| Connectivity | LTE Cat M1, NB‑IoT, fallback 2G |
|---|---|
| Bands | Carrier-specific bands/model dependent — bands not specified in supplied description |
| Power & Battery | DC input 8–33 V with inversion protection; rechargeable 3.7 V, 350 mAh backup battery |
| Power Consumption | ~120–130 mA active at 12 V; <5 mA sleep; deep sleep <2 mA |
| Interfaces | 16-pin J1962 OBD-II connector supporting J1850, ISO 9141-2, ISO 14230 (K-line), ISO 15765-4 (CAN) for engine/vehicle diagnostics and DTCs; two LEDs for network and GPS status; internal antenna |
| GNSS | GPS + GLONASS with SBAS (WAAS/EGNOS/MASA); typical accuracy ~±3 m CEP; sensitivity down to −167 dBm; TTFF: cold <35 s, warm <30 s, hot <1 s |
| Sensors | 3-axis accelerometer and 3-axis gyroscope (BMI160) for motion, crash and driving behavior detection |
| Bluetooth | Optional on ST4505T variant for BLE sensors/beacons |
| Remote Management | OTA firmware upgrades (remote firmware update) |
| Form Factor | OBD-II plug-in module, dimensions 74 × 46 × 25 mm; weight ~71 g |
| Operating Environment | Operating temperature −30 °C to +85 °C |
| Certifications | FCC, IC, PTCRB |
Use Cases
- Fleet management: continuous real-time tracking, route analysis and telemetry to optimize operations and reduce fuel costs.
- Anti-theft and vehicle recovery: backup battery reporting and optional jamming detection combined with Plaspy alerts help detect theft and assist recovery.
- Driver behavior and insurance telematics: accelerometer/gyroscope data provides harsh braking, acceleration and cornering events for coaching or usage-based insurance.
- Preventive maintenance and DTC reporting: real-time vehicle diagnostics and engine data feed Plaspy alerts for scheduled service and reduced downtime.
- Asset monitoring with BLE sensors (ST4505T): add temperature, door or cargo sensors via Bluetooth when required by business workflows.
Why Choose This Tracker with Plaspy
Choosing the ST4505 for Plaspy deployments delivers a dependable, easy-to-install GPS tracker that combines accurate positioning, vehicle-level telemetry and robust sensor data. Its OBD-II interface enables rich diagnostics and telemetry (including fuel-related data when provided by the vehicle), while the built-in accelerometer and gyroscope support crash reconstruction and driver scoring. Multi-network cellular support and a backup battery maximize uptime for mission-critical fleet management and anti-theft workflows.
For operators seeking scalable telematics, the ST4505’s OTA capability and Plaspy compatibility simplify remote maintenance and configuration. Optional Bluetooth and jamming-detection features (in variants) extend capability to Bluetooth sensors and hardened anti-theft measures when used within Plaspy’s alerting and immobilization workflows or with external immobilizer modules. The result is a practical, cost-effective GPS tracker for fleets, rental vehicles, insurance telematics and preventive maintenance programs that need reliable real-time tracking and telemetry.
Set Up ST4505
To set the tracker send the following commands by SMS messages,
the ID is the last 6 numbers of IMEI excluding the last number.
for example, if the IMEI is H7ibFPAyc6LEPwC the device Id is B9hAfe
-
Set the operator APN and GPRS server
SA200NTW;{{('XXXXXX' + imei.substring(8,14)).slice(-6)}};02;10;{{apn}};{{apnu}};{{apnp}};54.85.159.138;8888;;;; -
Set the update interval to 60 seconds
SA200RPT;{{('XXXXXX' + imei.substring(8,14)).slice(-6)}};02;60;60;60;3;0;0;0;0;0
To check settings SA200CMD;{{('XXXXXX' + imei.substring(8,14)).slice(-6)}};02;PresetA