Queclink GL521MG

The GL521MG is derived from successful GL500MG by supporting NB2 and adding Qi wireless charging and BLE. Customers love the battery-powered GL500MG but still wanted a rechargeable version for certain scenarios. Queclink designed this version without impacting the waterproof and robust enclosure. Adding BLE allows connectivity to diverse wireless accessories.With internal temperature and light sensors, the product is ideal for a wide range of environmental monitoring applications such as cold chain logistics, warehouse management, cargo trucking, high-value static asset monitoring and more. The GL521MG supports several mounting alternatives which use unique clip on design to securely attach the device to any asset.

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Server connection

EU (
US (
Server port47764
Auto registrationYes

General information

Weight150 g (5.29 oz.)
Size87x51x30 mm (3.43x2.01x1.18 in)
Waterproof classIP67
Internal antenna (GNSS)Yes
Internal antenna (Connection)Yes

Connectivity information

Network signal levelYes
Network operator IDYes
Cellular network typeCat NB2: LTE-FDD: B1/B2/B3/B4/B5/B8/B12/B13/ B18/B19/B20/B25/B28/B66/B71/B85 EGPRS: 850/900/1800/1900 MHz, Cat M1: LTE-FDD: B1/B2/B3/B4/B5/B8/B12/B13/ B18/B19/B20/B25/B26/B27/B28/B66/B85
Cellular network generation4G, 2G

Location information

GNSS signal levelYes
Forced GNSS location update over GPRSYes
Forced GNSS location update over SMSYes
Assisted GPSYes


Motion sensorYes
Built-in batteryYes
Battery capacity2400 mAh


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