Feature: GPS and Location Based Service Location Based service also named A-GPS, when tracker in underground or tunnel ,can get location by AGPS. Real time tracking Real time tracking it by cell phone and platform . Also can support get location every 5 seconds, and the GPS accuracy is 5m . Check the history of route on platform Can check and replay within one year history of route of device ,by web monitor center Power Saving Mode The device go into standby mode when there isn’t vibration for 3 minutes , it will go into working mode when it feel vibration Google map on mobile Check the location with google map on mobile. Geofence and movement alert Set up a geo-fence for the unit to restrict its movements within a district ,unit will send a message to the authorized numberwhen it breaches the district.. Overspeed alert set up the speed as your requirement, and will get the alert when overspeed. Network: GSM/GPRS GSM/GPRS module: MTK Band: 850/900/1800/1900Mhz Communication protocol: TCP GPS chip: SRIF 3 GPS accuracy: 5m-50m Time To First Fix: Cold status 45s; Hot status 1s Car charger: 12—24V input 5V output Wall charger: 110-220V input 5V output Battery: 3.7V 1000mAh Li-ion battery weight 44g Storage Temp: -40°C to +85°C Operation Temp: -20°C to +55°C Humidity: 5%--95% non-condensing