This GPS tracker can locate accurately and can be use in guarding vehicle against thief Protects child, elderly, disabled, and pet Managing personnel and tracking criminals secretly Details: Working based on existing GSM, GPRS850, 900, 1800, 1900MHz network, and GPS satellites This product can locate and monitor any remote targets by SMS, computer, or PDA Advantages of products: Easy to inquire independently Using server in public place or map software instead of setting up locating platform Will reduce buyers investing cost in the first period and customers usage cost (no charge for platform) This product can support all kinds of orientated platform Dimension: 46 x 64 x 17mm (1.8 x 2.5 x 0.65in) Weight: 50g Integration design(antenna and battery inside) Easy to hide and take with you Supports orientation without orientated server It can find out real-time longitude and latitude, time, and speed By using public map software and entering longitude and latitude manually, you can find out the real-time information of position Can support platform When using platform, it can track targets in real time on electronic map, or inquire the targets position by mobile phone If the target you are inquiring enters into underground parking lot or other GPS blind area, the tracker will inform you the last orientation Tracking function by timing and frequency Authorized number added and deleted function Supports hidden alarm and monitor function Geofence: Sets up a geofence for the unit to restrict its movements within a district The unit will send the message to the authorized numbers when it reaches the district Movement alert: You can set up barriers when the tracker is stopped Once moved, it can give an alarm to the authorized number Over speed alarm: You can make the inspected target run according to fixed speed It alarms when speed is exceeding