Technical parameter:* GSM850/900/1800/1900 Quad band* GPRS: Class12, TCP/IP* Working Voltage:9-50V DC* Working current:22mA (12vDC) OR 12mA (24vDC)* GPS locating time:Cold start38s(Open sky, Warm start32s, Hot start2s(Open sky)* GPS Precision:10m(2D RM)* Working temperature:-20C ~ +70C* Working humidity:20% ~ 80%RH* Size:70(L)42(W)25(H)mm Main ST110:50g* Package Dimension:125mm*76mm*60mm* Weight: 0.125kg Feature:GPS + GSM + GPRS network positioning systemBroadband power design, wide voltage input rangeObtain location information via SMS or GPRS (TCP)Support location services platform access, query location more convenientReal-time tracking, upload location information intelligently(support Android IOS Web System)LED indicator