GV350MG specifications LTE Cat M1/NB1 advanced vehicle tracker supporting BLE for wide variety of external peripherals and I/ O options LTE Specifications Operating Band Data Transmission 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 eMTC (DL) 375 Kbps eMTC (UL) 375 Kbps NB1 (DL) 32 Kbps NB1 (UL) 70 Kbps 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 Support 1-wire temperature sensor and iButton driver ID (maximum 8 channels) Cellular Antenna Internal only GNSS Antenna Internal patch antenna and optional external antenna (SMA type connector) Internal only Used for upgrading and debugging EGPRS Specifications Frequency Data Transmission GPRS multi-slot class 33 (33 by default) EDGE multi-slot class 33 (33 by default) GNSS Specifications GNSS Type u-blox All-in-One GNSS receiver Autonomous: -147 dBm Hot Start: -156 dBm Reacquisition: -160 dBm Tracking: -162 dBm Position Accuracy Autonomous: < 2.5m (CEP) Cold start: 27s average TTFF (Open Sky) Warm start: 27s average Hot start: 1s average General Specifications Dimensions Backup Battery Operating Voltage Operating Temperature Air Interface Protocol Transmit Protocol TCP, UDP, SMS Report position and status based on preset time Scheduled Report intervals, distance, mileage or a combination of these settings Geo-fences Geo-fence alarm, support up to 20 circular and 20 polygon geo-fence regions Report when the device is powered on 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