... . Support overspeed alarm.9- Support 3 sensors, can record brake, return, right turn, left turn light status into the record file ... and the sensitivity can be adjusted.15- Date and time stamp records onto footage.16- USA Daylight Savings Time compatible.17 ... FORMATAVIINTERFACESENSORS1 speed sensor, 1 ignition sensor, 3 sensors for brake, return etc.COM PORT 2 RS232 port, 1 RS485 portNETWORKRJ45, 10M ...