GPS GSM tracker module of high Performance, Low Price ... 1.Chipset:SiRF star III 2.Cold start time<48 sec. 3.Size: 25.4*25.4*3. GPS GSM tracker module ... with Low Price, High Performance, International Approvals, Prompt Delivery, Small ... pulse positive edge 4).Measurements Aligned to GPS second, ±1 microsecond 12. Environmental Characteristics ...