Power supply voltage 8 - 30 V Maximum current consumption 500 mA /12 V Nominal current in on-line mode 50 mA /12 V Standby current consumption 14 mA /12 V Dimensions without the terminals and mounts L x W x H 160 x 42x 19 mm Unit weight 90 g Operating temperature range -20 to +80 ℃ Intended for connection to a +12 V or +24 V DC vehicle power supply. The unit is intended for operation in road vehicles.