Queclink GL502MG — Flagship IP68 Asset Tracker with 57,000mAh Battery and 10-Year Standby

The Queclink GL502MG is Queclink's most capable and rugged asset tracker — a flagship product designed for the most demanding long-duration tracking applications. Whether you are tracking trailers, shipping containers, heavy plant, intermodal equipment or high-value assets across the UK and internationally, the GL502MG delivers a level of battery life, durability and deployment flexibility that no standard asset tracker can match.

Its 57,000mAh Lithium Thionyl Chloride battery — user-replaceable in the field without specialist tools — provides up to 10 years of standby time, eliminating the need for regular recharging or battery replacement across the life of most deployments. Combined with an IP68 waterproof and dustproof enclosure, LTE Cat M1 and NB2 with 2G fallback, BLE 5.2 for wireless sensor connectivity, and Wi-Fi positioning for enhanced accuracy in depot and yard environments, the GL502MG is the complete long-life asset tracking solution.

As an authorised Queclink distributor in the UK, Tracking Hardware UK stocks the GL502MG and ships directly from our London warehouse — with trade pricing available for fleet operators, logistics companies, asset managers and resellers.

Key Features

• 57,000mAh user-replaceable battery — massive Lithium Thionyl Chloride battery provides up to 10 years of standby time and is user-replaceable in the field, dramatically reducing maintenance costs over the device lifetime

• IP68 waterproof and dustproof — fully sealed enclosure rated to IP68, withstanding complete submersion and the harshest outdoor environments including heavy rain, mud, dust and extreme temperatures LTE Cat M1 and NB2 with

• 2G fallback — global LTE connectivity with automatic fallback to 2G, ensuring reliable data transmission across the UK and internationally including remote and low-coverage areas

• BLE 5.2 — connects to Bluetooth Low Energy sensors and wireless accessories including temperature probes, door sensors and humidity monitors for extended cargo and asset monitoring

• Wi-Fi positioning — uses nearby Wi-Fi networks to provide enhanced location accuracy in depot yards, warehouses and urban environments where GPS signals may be degraded u-blox All-in-One

• GNSS receiver — GPS, GLONASS, Galileo and BeiDou support with up to -162dBm tracking sensitivity for reliable positioning in challenging signal conditions

• Flexible installation options — unique casing design allows placement inside a container, fixing with four spikes directly to a surface, or secure magnetic attachment using the optional magnetic holder kit

• Magnetic reed switch power on/off — device is powered on and off using a magnet, with no physical button required, maintaining the sealed IP68 enclosure integrity

• Motion detection — 3-axis accelerometer detects movement and triggers automatic reporting when assets start or stop moving, conserving battery during stationary periods

• Geofencing — configurable zone alerts when the device enters or exits defined areas

• Tow and movement alerts — immediately notifies when an asset is moved without authorisation

• Temperature monitoring — optional temperature sensor support for cold chain and sensitive cargo monitoring

• Tamper detection — alerts when the device is removed or interfered with

• OTA updates — remote firmware and configuration management via USB Type-C or over the air

Technical Specifications

Cellular: LTE Cat M1 / NB2 with 2G GPRS fallback

GNSS: GPS, GLONASS, Galileo, BeiDou — u-blox All-in-One receiver

Bluetooth: BLE 5.2

Wi-Fi: Positioning supported

Battery: 57,000mAh Lithium Thionyl Chloride — user-replaceable Standby time: Up to 10 years

Waterproofing: IP68

Operating temperature: -40°C to +85°C

Installation: Spike mount, magnetic mount or freestanding inside container Interface: USB Type-C for firmware and debug

Typical Use Cases

Ideal for trailer tracking across UK and international haulage networks, shipping container and intermodal equipment monitoring, heavy plant and construction equipment tracking, high-value asset protection requiring long-life covert deployment, yard and depot management using Wi-Fi positioning, cold chain monitoring with BLE temperature sensors, rental equipment fleet management, and any application requiring a maintenance-free tracking solution lasting years without battery replacement.

Frequently Asked Questions

How long does the GL502MG battery last?

The GL502MG is powered by a 57,000mAh Lithium Thionyl Chloride battery that provides up to 10 years of standby time depending on reporting frequency and network conditions. The battery is user-replaceable in the field without specialist tools, significantly reducing long-term maintenance costs.

How is the GL502MG installed?

The GL502MG offers three installation options — it can be placed freely inside a container or asset housing, fixed directly to a metal or non-metal surface using four spikes, or magnetically attached using the optional magnetic holder kit. The device is powered on and off using a magnet applied to the built-in magnetic reed switch, maintaining the IP68 seal integrity with no physical buttons required.

What is Wi-Fi positioning and how does it help?

Wi-Fi positioning uses nearby Wi-Fi access points to calculate the device's location when GPS signals are weak or unavailable — such as inside warehouses, depots or urban canyon environments. This provides significantly improved location accuracy in yard management and depot scenarios without requiring additional hardware.

Does the GL502MG support temperature monitoring?

Yes — the GL502MG supports optional temperature sensor connectivity via BLE, making it suitable for cold chain monitoring alongside standard asset and trailer tracking. Contact us for details on compatible BLE temperature sensor accessories.

Does the GL502MG require a SIM card?

Yes — the GL502MG requires a SIM card with LTE Cat M1 or NB2 capability and 2G fallback. It is not supplied with a SIM. Contact us for SIM recommendations for UK and international asset tracking deployments.

Can I buy the GL502MG in bulk from Tracking Hardware UK?

Yes — we supply logistics operators, fleet managers, asset tracking companies and resellers across the UK and internationally. Volume pricing and trade accounts are available. Contact us for a bulk quote.