Features: 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 USB interface connection port. Waterproof and non-slip on the bottom. LED indicator for GPS fix or not fix. LED OFF: Receiver switch off LED ON: No fix, signal searching LED Flashing: Position fixed WAAS ENGOS is supported. Specifications: Chipset: SiRF Star III Frequency: L1, 1575.42 MHz C/A code: 1.023 MHz chip rate Channels: 20 channel all-in-view tracking Sensitivity: -159 dBm Accuracy Position: 10 meters, 2D RMS 5 meters, 2D RMS, WAAS enabled Velocity: 0.1 m/s Time: 1us synchronized to GPS time Datum Default: WGS-84 Acquisition Time Reacquisition: 0.1 sec., average Hot start: 1 sec., average Warm start: 38 sec., average Cold start: 42 sec., average Dynamic Conditions Altitude: 18,000 meters (60,000 feet) max Velocity: 515 meters /second (1000 knots) max Acceleration: Less than 4g Jerk: 20m/sec × 3 Power Main power input: 4.5V ~ 6.5V DC input Power consumption: 80mA Protocol Electrical level: TTL level Output voltage level: 0V~2.85V Baud rate: 4,800 bps Output message: NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL Physical Characteristics Dimension: 53mm diameter, 19.2mm height Cable length: 1.5 meters Operating temperature: -40°C to +85°C Package includes: BU-353 GMouse GPS CD with Manual and Driver Applications: For car naviagation, marine navigation, fleet management, AVL, personal navigation, tracking system and mapping devices.