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Gl521mg Queclink

GL521MG The GL521MG is a Global LTE Cat M1/NB2 device with 2G antenna backup, which supports NB2 and adds a rechargeable battery with wireless charging, Qi, and BLE. The device is designed according to IP67 certification, making it water-resistant. Adding BLE allows connectivity to various wireless accessories; it also has internal temperature and light sensors. The GL521GM is ideal for asset control and fleet management, as well as a wide range of environmental monitoring applications such as cold chain logistics, warehouse management, cargo trucks, monitoring of static high-value assets, and more. The GL521MG is a quick and flexible installation device, compatible with different mounting alternatives that use a unique clip design to securely connect the device to any asset, and it can be kept in standby mode for up to 1 year.

Specifications

Manufacturer Model Type I/O Battery Communication Methods
Queclink GL521MG GPS Yes - Internal Battery TCP/ UDP/ SMS

Features

LTE Specifications

Operating Band Cat M1/Cat NB2:
Cat M1:
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/B85
EGPRS: 850/900/1800/1900 MHz
Data Transmission eMTC (DL) 375 Kbps
eMTC (UL) 375 Kbps
NB1 (DL) 32 Kbps
NB1 (UL) 70 Kbps

 

EGPRS Specifications

Frequency EGPRS 850 / 900 / 1800 / 1900 MHz
Data Transmission GPRS Multislot Class 33 (33 by default)
EDGE Multislot Class 33 (33 by default)

 

GNSS Specifications

GPS Type u-blox All-in-One GNSS Receiver
Sensitivity Autonomous: -147 dBm Cold Start
Hot Start: -156 dBm
Reacquisition: -160 dBm
Tracking: -162 dBm
Position Accuracy (CEP) Autonomous: < 2.5m
TTFF (Open Sky) Cold Start: Average 27s
Hot Start: Average 27s
Warm Start: Average 1s

 

General Specifications

Dimensions 87 × 51 × 30 mm
3.43" (L) × 2.01" (W) × 1.18" (H)
87 × 51 × 33.5 mm
3.43" (L) × 2.01" (W) × 1.32" (H) (Magnetic Mounting Version)
Weight 150 g (5.29 oz)
170 g (6.0 oz) (Magnetic Mount Version)
Backup Battery Li-Polymer 3.7V/2400mAh
Standby Time Standby Current: < 10 µA
1 Report Per Day: 1 Year
Wireless Charger Specifications Input: Wireless Charging 5V/1A. Disclaimer: Use of unapproved chargers with Queclink products may damage the product and lead to battery failures, including the risk of intense heat and explosion. Queclink, its distributors, and affiliates will not bear responsibility for the damages described above. When using a third-party charger, you assume all responsibility for any risk, damage, or injury.
Charging Method Wireless Charging 5V/1A
Waterproof Meets IP67
Operating Temperature -20℃ ~ +60℃
BLE Supports BLE 5.2 Protocol
Internal Temperature Sensor For Temperature Monitoring
Accuracy: ±1 ℃
Internal Light Sensor For Tamper Detection
Internal Motor For Vibration Feedback After Successful Function Button Operation
Magnetic Mounting Case (Optional) For Easy Installation on Metal Surfaces

 

Interfaces

Function Button Used for Power On/Off and Checking Operating Status
LTE Antenna Internal Only
GNSS Antenna Internal Only
BLE Antenna Internal Only
LED Indicators GPS, CEL

 

Wireless Interface Protocol

Command Set @Track Protocol Command
Transmission Protocol TCP, UDP, SMS
Operation Modes Extended Standby Mode for Prolonged Standby Time
Continuous Mode for Emergency Tracking
Scheduled Reporting Reporting Position and Status at Predefined Time Intervals
Geofences Supports Up to 20 Internal Geofence Regions
Low-Power Alarm Alarm When Internal Battery Is Low
Wake-Up Report Reports When the Device Wakes Up
Motion Detection Motion Detection Based on 3-Axis Internal Accelerometer
Report Frequency Adjustment Intelligent Report Frequency Adjustment
GL521MG

Requirements

See the complete documentation
GL521MG

Programming

See the complete documentation
GL521MG

SMS Programming

See the complete documentation
GL521MG

Commands

See the complete documentation