... battery life is 15 days (standby mode), over area alarm, over speed alarm, emergency SOS help, these ... temperature is -20 0C to 60 0C, over this range the specification maybe can not reach ... go out the restricted area- Send alert of over speed to platform when it exceeds the restricted ... Real-time GPS Tracking system,SOS emergency helping,over range /over speed alarm,shock sensor alarm,se local ...