... 3.PTZ Control Factory Develop Produce Mini Mobile DVR With Auto Record Function 3G GPS *Specification Item ParameterA&V Input ... voltage protection, short-circuit protection, transposition protection, fire on/off timing,delay power-off. Output voltage is 12v . Power 2. ... , over-current, reverse, ESD, power-off protection 7. Support Auto recording, timed recording, alarm recording ( open/ close door etc.) ...