LTE Cat M1 / NB-IoT
LTE Cat M1 / NB-IoT GNSS asset tracker.

LTE Waterproof Tracker with 10-Year Standby Time
The GL502MG is an LTE Waterproof Tracker with 10-Year Standby Time. The device operates on LTE Cat M1 and NB-IoT networks, providing reliable connectivity for IoT tracking applications.
Dispatch and lead time are confirmed in the quote.
Manufacturer warranty24 months
Overview
The device is designed for long-term monitoring of valuable assets such as containers and trailers. Its rugged design allows it to be installed directly on equipment that operates in challenging outdoor environments.
A large 57000 mAh battery supports extremely long deployments, allowing the tracker to operate for up to 10 years in standby mode. This reduces maintenance needs and makes it suitable for assets that rarely receive service.
The tracker combines GNSS positioning with Wi-Fi scanning, giving it multiple ways to determine location. This helps maintain location visibility in areas where satellite signals may be weak.
With position accuracy below 2.5 metres, the device can provide precise asset location information. This is important for logistics operations where equipment needs to be located quickly.
The device operates on LTE Cat M1 and NB-IoT networks, providing reliable connectivity for IoT tracking applications. These networks are designed for low-power devices and wide-area coverage.
The tracker can send data using standard communication methods and supports scheduled reports. This allows users to define how often the device sends location updates.
Built-in monitoring features help detect important events during operation. Motion detection based on an internal accelerometer allows the device to recognise when an asset starts moving.
The system also supports up to 20 geo-fence regions, enabling alerts when equipment enters or leaves defined areas. Low-power alerts notify users when the battery level becomes low.
Power management is a key part of the device design. Intelligent reporting schedules help reduce unnecessary communication, extending battery life.
Because the battery is user-replaceable, the device can continue operating for extended deployment cycles without needing full hardware replacement.
The rugged IP68 enclosure protects the device from dust, water, and harsh weather. This makes it suitable for outdoor logistics environments.
Internal antennas simplify installation while maintaining stable communication. A USB Type-C interface allows technicians to update firmware or perform diagnostics when needed.
LTE Cat M1 / NB-IoT GNSS asset tracker.
Up to 10-year standby time with ultra-high capacity battery.
IP68 rugged waterproof enclosure.
BLE 5.2 support for wireless accessories.
Wi-Fi positioning for improved location detection.
Geo-fencing support for asset movement alerts.
57000 mAh lithium thionyl chloride battery (non-rechargeable, replaceable).
Position accuracy: < 2.5 m CEP (GNSS).
Technical data
| Region Operating Band GNSS Type Position Accuracy (CEP) | |
|---|---|
| Region | Worldwide |
| Operating Band | Cat M1/Cat NB1: LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85 Cat NB2: LTE-FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B28/B66/B71 EGPRS: 850/900/1800/1900MHz |
| GNSS Type | u-blox All-in-one GNSS Receiver |
| Position Accuracy (CEP) | Autonomous: < 2.5m |
| Interfaces | |
| Battery Switch | Used for power on/off (Internal only) |
| Cellular Antenna | Internal only |
| GNSS Antenna | Internal only |
| BLE Antenna | Internal only |
| Wi-Fi Antenna | Internal only |
| SIM Access | 3FF SIM (Internal only) |
| LED Indicators | GNSS, PWR (Internal only) |
| USB Type-C | Used for firmware upgrading and debug (Internal only) |
| Air Interface Protocol | |
| Command Set | @Track protocol command |
| Transmit Protocol | TCP, UDP, SMS |
| Working Modes | |
| Power saving mode | Power saving mode for long standby time |
| Continuous mode | Continuous mode for emergency tracking |
| Scheduled Timing Report | Report position and status at preset time intervals |
| Geo-fences | Support up to 20 internal geo-fence regions |
| Low Power Alarm | Alarm when internal battery is low |
| Wakeup Report | Report when the device wakes up |
| Motion Detection | Motion detection based on internal 3-axis accelerometer |
| Reporting Frequency Adjustment | Intelligent adjustment of reporting frequency |
| Accessories | |
| WKF300 | BLE key fob for continuously detecting the on-board status of the device |
| GL502MG Battery Pack | Lithium thionyl chloride battery, 57000mAh 3*ER34615 3.6V/59A Model: GL502MG Battery Pack |
| GL502MG Steel Lanyard Kit | Used for installation of GL502MG. Parts list: Steel Lanvard x1 Lanyard Plate ×2 Model: GL502MG Steel Lanyard Kit |
| GL502MG Magnetic Mounting Kit | Used for magnetic installation of GL502MG. Magnet x4 Screw x4 Nut ×4 Metal Gasket ×4 Silicone Gasket × |
No specification rows match the filter.
Applications
Shipping containers often travel across long distances and remain unattended for long periods. The tracker’s long battery life and rugged enclosure allow continuous monitoring during international transport.
Location updates and geo-fence alerts help logistics operators track container movement and detect unexpected route changes.
Trailers frequently move between different vehicles and locations. A compact tracking device with GNSS positioning allows operators to maintain visibility even when trailers are detached.
Motion detection helps identify when a trailer begins moving, improving fleet coordination and security.
Industrial equipment such as generators, storage units, and mobile machinery may remain in remote areas for months or years. A 10-year standby capability enables long-term deployments without frequent maintenance.
This allows companies to monitor valuable assets while minimizing service visits.
Urban environments often have limited satellite visibility due to buildings. The device’s Wi-Fi positioning support improves location detection in these areas.
This ensures assets can still be located when GNSS signals are partially obstructed.
Utilities and infrastructure companies often deploy equipment in isolated locations. The low-power LTE Cat M1 / NB-IoT connectivity enables reliable communication even in wide-area networks.
This helps organisations maintain visibility over critical equipment distributed across large geographic regions.
Documentation
Questions
u-blox All-in-one GNSS, according to the specification.
u-blox All-in-one GNSS, according to the specification.
Request a quote
Tell us the quantity and the delivery country. We reply within one working day with the price, stock at the nearest warehouse and the dispatch date.
Manufacturer warranty24 months
Europe & United Kingdom
Product advice, availability and project enquiries.
All contact details