... power alarm, Geo-fence alarm ·Roaming feature to save cost ·Control or detect the car doors/engine on/off ·Cut off ... start1 sec., averageWarm start38 sec., averageCold start42 sec., averageI/O port 4 digital inputs (2 negative inputs, 2 positivel inputs ), 2 ... GPS /GSM/GPRS/AGPS tracker, engine on& off, geo-fence control,over speed&low power alarm, mileage calculation