... expansion, recording vehicle direction state and alarmBatteryWide Voltage Range. Operation voltage: 6V~48V; Recommend range: 8V-40V ... instantaneous range: 6-70V. Support overvoltage protection, under-voltage protection, short-circuit protection, transposition protection, fire ... delay power-off. Output voltage is 12v . Power 2.4WSystemEmbedded full-time multitask control system, support Chinese ...