GNSS  
Positioning system GPS/BDS
Positioning accuracy <2.5m CEP
Track sensitivity -162 dBm
Acquisition sensitivity -148 dBm (cold) /-156 dBM (hot)
TTFF (open sky) Avg. hot start ≤1sec
Avg. cold start ≤32sec
Cellular  
Communication network LTE + GSM
Frequency VL502 (L):
LTE-FDD: B2/B3/B4/B5/B7/B8/B28/B66
GSM: B2/B3/B5/B8
VL502 (E):
LTE-FDD: B1/B3/B5/B7/B8/B20/B28
GSM: B2/B3/B5/B8VL502 (A):
Cat M1: B2/B4/B5/B12/B13
Cat NB2: B2/B4/B5/B12/B13
Power  
Battery 50mAh/3.7V
Input voltage 9-36VDC
Interface  
LED indication 1 status indicator (Blue)
SIM Nano-SIM
Data storage 8+16MB
OBD port  
Connection OBDII port
Data K-Line, CAN Bus
OBD protocols ISO 9141-2 (5 baud init, 10.4 kbaud)
ISO 14230-4 KWP (5 baud init, 10.4 kbaud)
ISO 14230-4 KWP (fast init, 10.4 kbaud)
ISO 15765-4 CAN (11 bit ID, 250 kbaud)
ISO 15765-4 CAN (11 bit ID, 500 kbaud)
ISO 15765-4 CAN (29 bit ID, 250 kbaud)
ISO 15765-4 CAN (29 bit ID, 500 kbaud)
SAE J1939 CAN(29bit ID, 250kbaud)
SAE J1939 CAN(29bit ID, 500kbaud)
Physical specification  
Dimensions 61.0 x 52.0 x 26.0mm
Weight 55g
Operating environment  
Operating temperature -20°C to 70°C
Operating humidity 5%~95%, non-condensing
Feature  
Sensors Accelerometer
Ignition detection External Power Voltage
Scenarios Car Fault, Over-Speed, Ignition detection, Collision, Geo-fence entry/exit, Power on, Device pull-out, Engine idling
Driving behavior analysis Harsh acceleration, Harsh braking, Harsh cornering, Collision