GPS GSM tracker module of high Performance, Low Price 1.Chipset:SiRF ... <48 sec. 3.Size: 25.4*25.4*3. GPS GSM tracker module with Low Price, High Performance, International Approvals, Prompt ... ,000 meters (<60,000 feet) Max 2).Velocity:515 m/s (<1,000 knots) Max 3).Acceleration:4G, Max 8.Power ...