... Specification- GSM Working Frequency 850(Optional) /900 /1800 /1900MHz - GPS(SiRFstarIII chipset) , Frequency L1, 1575.42 MHz. - Minimum signal ... Humidity, 20—95% - Cable type - GSM Antenna, Gain, 3dBi Cable Length, 3-5meters Connector, SMA- GPS Antenna, Voltage, 3V Cable; Length, 3-5 ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Auto-arming function GPS tracker,GPS-1200