GPS GSM tracker module of high Performance, Low Price 1.Chipset:SiRF star III ... *25.4*3. GPS GSM tracker module with Low Price, High Performance, International Approvals, Prompt Delivery, Small Orders ... Input power input:3.3V DC for main power and RTC power 2).Input current: Less than 35mA ... ASCII output (GGA, GSA, GSV, RMC (VTG ,GLL and ZDA for optional)) 3).SiRF binary:position, velocity, altitude ...