Features:Single locating, if there is no authorized number, any number dials up the device number, it will report tracking message.Continuous tracking automatically, send specified format message, it will report real-time tracking message.Authorization, there are 4 numbers to be allowed to authorize in the tracker at most, you just need send SMS in the format specified to the device.Dialing and SMS tracking, make a call or send SMS to the device number, it will hang up and reply a real-time tracking message.Alarms, it sets with GEO-fence alarm, ACC working alarm.It has 3 modes to switch, the tracker, the monitor listening, and the dial mode.It can cut off and resume the oil and power system of your vehicle by send specified format SMS to the device.You can set up arm by the SMS and the remote controller, you can disarm through the same way too.With it, you can check the vehicle state, IMEI, and reset SMS, set time zone, GPRS, APN, IP and port, and reset the device.Specification:Condition: Brand NewMaterial: ABSColor: BlackCommunication System: GSMGSM Frequency: 850/900/1800/1900 MHzGSM Antenna: built-in four-band bracket antennaGPRS: Class 12GPS: MT3326Channel Number: 20 ChannelsTracking Sensitivity: - 159dBmCapture Sensitivity: - 144dBmPositioning Time: hot start < 2s (open sky), cold start < 38s (open sky)GPS Antenna: built-in high-gain ceramic Patch antennaBuilt-in battery: 3.7V DC/450mAhOperating Voltage/Current: 9-36V DC/90 mALED Indicators: Three LED Status Indicators: GPS - Blue, GSM - Green, Power - RedWorking Temperature: 25C ~ +60CWorking Humidity: 5% ~ 95% Non-solidificationPackage Weight: Approx.314gFitment: UniversalFunction:GPS/GPRS/GSM vehicle TrackerReal-time trackingSpeeding/low power alarmMovement alarmInto/out off Geo-fence alarmACC detection and informCut power alarmRemote control oil and circuitAdd vibration alarmAdd open door alarmAdd detection of air conditioner on and offAdd sos alarmAdd remote listeningAdd save power and GPRS functionAdd AGPS function,receive GPS signals fasterBuilt-in storage memory,blind area data uploadAdd APP setPackage list:1 * GPS Locator5 * Wiring Hardness1 * Relay1 * Sticker1 * User Manual