4G Mini GPS Tracker Gt50 Cut off Engine to Stop The Car Safely by SMS/GPRS-Ef

4G Mini GPS Tracker Cut Off Engine To Stop The Car Safely By SMS/GPRS-EFFeatures & FunctionsTrack on command or by time interval via SMS/GPRS;Arm/disarm by SMS or phone call.Check the car's real physical address (such as city name, street name.);Track by mobile SMS to get the latitude, longitude, speed, direction & odometer etc.Check the location directly by the Google map's URL;Data logger to store 1760 waypoints.Online tracking by website;Odometer function;Over-speed alarm, Movement alarm, Engine on alarm, Vibration alarm;Turn over alarm;Acceleration & Deceleration (Crash) Alarm;OTA function: Upgrade firmware on air;Smart engine ON/OFF status detection without wiring to ACC;Built-in rechargeable backup battery; when the car battery is cut off or low enough, the system will send out power failure alarm immediately;Cut off engine to stop the car safely by SMS/GPRS;Routine optimization when vehicle turns a corner;A-GPS function to get GPS signal much faster;Wide working voltage range, from 10V-90VDC, suitable for motorcycle, car or big truck.Reliable design of framework with hardware watchdog.Detection on internal battery's volume & vehicle battery's voltage.Support Bluetooth remote controller (optional)Water-proof designSupport SOS button(optional)Specification  Working voltage:+10.0 ~+90VDCPower Consumption: Standby current: 27mAWorking current: 58mA;Deep sleep mode current: