Ove ratio and acc ratio 5.Sos alarm (available to preset 3 sos number) 6.External power cut alarm and low battery alarm 7.Speed alarm, geo-fence alarm, shake alarm, 8.Stop vehicle remotely via relay (stop engine) 9.Engine on/off alarm, engine on hours report 10.Position logging capacity up to 30, 000+ waypoints if no gprs signal 11.Take photo automatically at a preset time interval 12.Take photo automatically when sos or geo-fence or any other alarm triggered 13.Update door open/close status, available to control open/close vehicle door by sms or platform 14.Available to set different alarm notification ways, such as via sms, call or email 15.Synchronous record vehicle mileage 16.Available to send mileage alarm to remind vehicle maintenance 17.Automatically stop vehicle or activate buzzer/siren when geo-fence, speed alarm or any other alarm trigger 18.Support taking photo by extra camera (max 4pcs cameras), 6kb for each photo 19.Support voice monitoring and two way conversation via extra speaker and microphone 20.Support driver identification and students taking school bus management by extra rfid sets 21.I/o: 5 digital inputs, 3 negative and 2 positive triggering; 4 outputs. 22.Analog input: 4*10bits resolution analog inputs Application Pt600x can be used for fleet management, vehicle rental tracking, taxi management, transportation, vehicle insurance, and school bus etc.