SiRF Star III High Performance GPS chipset High sensitivity (Tracking Sensitivity: -159 dBm) Extremely fast TTFF (Time To First Fix) at low signal level Support NMEA 0183 data protocol Built-in SuperCap to reserve system data for rapid satellite acquisition Built-in patch antenna Super-cohesive magnetic for mounting on the car RS232 interface connection port Waterproof and non-slip on the bottom. Delicate Designed Gift Box.
