L57 4G Wired GPS Tracker 4-Wire for Fleet & Commercial Vehicles
The L57 4G LTE GPS Tracker is a compact, high-precision real-time vehicle tracking device designed for cars, motorcycles, and scooters. It supports 4G LTE with GSM fallback, ACC detection, ignition monitoring, power cut alerts, and optional fuel/elec...
About L57 4G Wired GPS Tracker 4-Wire for Fleet & Commercial Vehicles
The L57 4G LTE GPS Tracker is an advanced vehicle tracking solution engineered for fleet management and anti-theft security applications. Equipped with a Quectel EC800G-CN LTE Cat1 module and AT6558R GPS chipset, it ensures stable 4G connectivity with GSM fallback support. The device provides real-time tracking via mobile app or platform, ignition status monitoring (ACC), speeding alerts, movement detection, mileage statistics, and angle change location updates. Designed to operate within a wide 9–90V DC range, it is compatible with 12V and 24V vehicle systems. With an internal 110mAh backup battery, it continues to send alerts even during external power disconnection. Optional relay support enables remote engine cut-off for enhanced security.
- Live GPS tracking via mobile application and web platform
- Detects ACC ON/OFF status with configurable alerts
- Triggers alert when unauthorized movement is detected
- Generates alert when preset speed threshold is exceeded
- Sends notification when external power supply is disconnected
Key highlights
Product features
Evaluate these capabilities against your route profile, risk controls, and team workflows.
- Live GPS tracking via mobile application and web platform
- Detects ACC ON/OFF status with configurable alerts
- Triggers alert when unauthorized movement is detected
- Generates alert when preset speed threshold is exceeded
- Sends notification when external power supply is disconnected
- Automatically updates location when device angle changes
- Detects and reports vehicle battery voltage status
- Records and uploads total travel distance data
- Supports relay-based fuel/electricity disable (optional)
- Alarm notifications sent only to registered admin number
- Configurable upload interval for ACC ON (5–60s) and ACC OFF (60–3600s)
- Selectable notification modes: GPRS / SMS+GPRS / GPRS+SMS+CALL
Technical specifications
Use this table for compatibility checks, deployment planning, and integration review.
| Dimensions | 79 × 34 × 18 mm |
|---|---|
| Network | 4G LTE with GSM fallback |
| LTE Bands | FDD: B1/B3/B5/B8; TDD: B34/B38/B39/B40/B41 |
| GNSS Support | GPS / BDS |
| Location Accuracy | < 5 meters CEP |
| Tracking Sensitivity | -162 dBm |
| Time To First Fix - Cold Start | < 35 seconds |
| Time To First Fix - Hot Start | < 1 second |
| Working Voltage | 9–90V DC |
| Operating Temperature | -20°C to +70°C |
| Backup Battery | 110mAh / 3.7V Li-Polymer |
| Standby Consumption | 7.8mA |
| Working Consumption | 92–118mA |
| Protocol Type | GT06 Protocol |
| GPRS Protocol | Class 12, TCP/IP |
| LTE Module | Quectel EC800G-CN (LTE Cat1) |
| GPS Chipset | AT6558R |
| SIM Requirement | 4G SIM with activated GPRS data (PIN disabled) |
| Antenna | Built-in GSM & GPS antennas |
| Data Transmission | TCP/IP over GPRS/LTE |
| Power Failure Detection Time | 2–60 seconds (configurable) |
| Minimum Charging Time Setting | 1–3600 seconds (configurable) |
Key features
- Live GPS tracking via mobile application and web platform
- Detects ACC ON/OFF status with configurable alerts
- Triggers alert when unauthorized movement is detected
- Generates alert when preset speed threshold is exceeded
- Sends notification when external power supply is disconnected
- Automatically updates location when device angle changes
- Detects and reports vehicle battery voltage status
- Records and uploads total travel distance data
- Supports relay-based fuel/electricity disable (optional)
- Alarm notifications sent only to registered admin number
- Configurable upload interval for ACC ON (5–60s) and ACC OFF (60–3600s)
- Selectable notification modes: GPRS / SMS+GPRS / GPRS+SMS+CALL
Downloads & documentation
Frequently asked questions
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View productWritten by
Pictor Telematics Product Documentation Team · Specifications and Deployment Guidance
Reviewed by
Mr. Rajesh Kumar · Founder Director & Chief Executive Officer
Published
Jan 15, 2024
Last reviewed
Apr 10, 2026
Validation approach
Product information is reviewed against technical specifications, installation constraints, and operational usage patterns from deployments since 2014.