... close&open statusFlash memoryVoice monitor(optional)Backup time: 20 hours4 switch input, 2 analog input, 2 digital input , 3 digital outputUpdate ... modulePosition Accuracy10-15 metresLED lightPower(Tremble)/GSM/GPSI/O Port4 switch input, 2 analog input, 2 digital input , 3 digital outputExterior ...