... driving records. Rating and Operating Conditions ParameterMinMaxUnitsSupply Voltage (24v)9V36VVPower consumption12 (sleep)≤300mAOperational Temp.-2070 ... failure, illegal ignition, illegal door-opening, Voltage Analog Input, Low battery voltage alarm, emergency brake, etc.Backup Battery ... bar, and RS232 connected device Intelligent GPS car alarm system/gps tracking device/ car gps alarm tracker ...