LTE CAT-M1 (eMTC) / CAT-M2 (NB-IoT) Fleet Tracking Devices
Product Description: 

The GV350 series (LTE) includes two models GNSS tracking devices with multiple interfaces including two RS232 serial ports and a 1-wire interface, etc. The series supports LTE CAT-M1 (eMTC) / LTE CAT-M2 (NB-IoT) network on multiple band for operation in both North America and Europe.

  • Wide Operating Voltage Range 8V to 32V DC
  • Multiple I/Os for Monitoring and Control
  • 1-wire Interface Supports Temperature Sensor
  • GARMIN FMI/Multiple Sensors
  • Two RS232 Serial Ports for External Accessories
  • Internal 3-axis Accelerometer for Motion Detection
  • Driving Behavior Monitoring and Incident Notification
  • Bluetooth Low Energy 4.0 Support
  • Internal GNSS Antenna and Optional External GNSS Antenna

GV350 Product Series


Network/Operating Band

GNSS Type Certificate   
GV350MA North America


LTE B2/B4/B12/B13

u-blox All-in-One  receiver FCC/Verizon
GV350ME Europe


LTE B3/B8/B20

EGPRS 900/1800 MHz

u-blox All-in-One  receiver CE/E-Mark



GSM Specifications(GV350ME)

Frequency 900/1800 MHz
Data Transmission

GPRS multi-slot class 33 (33 by default)

EDGE multi-slot class 33 (33 by default)

LTE Specifications

Operating Band B2/B4/B12/B13 B3/B8/B20
Data Transmission

eMTC (DL) 375Kbps

eMTC (UL) 375Kbps

eMTC (DL) 375Kbps

eMTC (UL) 375Kbps

NB1 (DL) 32Kbps

NB1 (UL) 70Kbps

GNSS Specifications


u-blox All-in-One GNSS receiver


Cold start: -145 dBm

Tracking: -161 dBm

Position Accuracy (CEP50) Autonomous: < 2.5m
TTFF (Open Sky)
Cold start: 30s average
Hot start: 1s average


Digital Inputs

1 positive trigger input for ignition detection

3 negative trigger inputs for normal use

Digital Output

1 digital output, open drain, 150 mA max drive current

Latched Digital Output

1 digital output with internal latch circuit, open drain, 150 mA max drive current

Configurable Input/Output

1 special I/O can be configured as a 0V-32V analogue input or an open drain digital output with 150 mA max drive current

Serial Ports

2 RS232 serial ports on 16 pin Molex type connector, for external devices

CAN Bus Interface CAN 2.0A/B, SAE J1939
1-wire Interface

Support 1-wire temperature sensor (maximum 8 channels)

Cellular Antenna Internal only
GNSS Antenna

Internal patch antenna and optional external antenna (SMA type connector)

Bluetooth Antenna (Optional)

Internal only

LED Indicators


Mini USB Interface

Used for upgrading and debugging

General Specifications


80mm(L) x 48mm(W) x 25mm(H)



Backup Battery

Li-Polymer, 250 mAh

Operating Voltage 8V to 32V DC
Operating Temperature
-30℃ ~ +80℃ 
-40℃ ~ +85℃  for storage

Bluetooth (Optional)

Support BLE 4.0 protocol

Air Interface Protocol

Transmit Protocol TCP, UDP, SMS
Scheduled Report

Report position and status based on preset time intervals, distance, mileage or a combination of these settings


Geo-fence alarm, support up to 20 circular and 20 polygon geo-fence regions

Power On Report

Report when the device is powered on

Tow Alarm

Based on internal 3-axis accelerometer

Driving Behavior Monitoring

Aggressive driving behavior detection, including harsh braking,  acceleration, etc.

Crash Detection

Accident data collection for reconstruction and analysis

Special Alarm

Special alarm based on digital inputs

Remote Control

OTA control of digital outputs