2.1 Red LED (power/working status)
Continuously in bright state
Slow flashing(interval 0.2s)
Continuously in dark state
Slow flashing(flash 0.1s after every 2s)
2.2 Green LED(GSM status indicator)
Quick flashing (interval 0.1s)
Slow flashing(flash 0.1s after every 2s)
Receive GSM signal normally
Continuously in bright state
GSM conversation/Start GPRS
Continuously in dark state
2.3 Blue LED(GPS status indicator)
Continuously in bright state
Continuously in dark state
2.4 Ignition detection indication
Three (blue/red/green) LEDs are in cycling flashing
3. Interface introduction