... gps for car, Canbus J1939, OBD II, Odometer, RFID reader, LCD screen, camera gps vehicle tracker, vehicle tracking device, gps for ... button for emergency General: L1 1575.42MHz, C/A code, 20 Parallel Channels Sensitivity: -143 dBm minimum Accuracy Position: 10m ... Battery Power Voltage: DC 9V-55VEnvironmental Specification: Operation Temperature: -20ºC to +70ºC Storage Temperature:-30ºC to +85 ...