Features The GPS receiver can be applied to vehicle navigation, vehicle tracking, distance measurement, etc. 50 channel GPS C/A coding, 1.023MHz stream. Support for DGPS(WAAS, EGNOS and MSAS). Operating system supports for Windows 8/7 / for Vista / for XP / for CE. Support for Google Earth, more convenient to use. Specification: Item Type: GPS Receiver Model: VK-162 Receiving Frequency: For L1 (1575.42MHz) 2D Plane: 5m (average) 2D Plane: 3.5m (average), with DGPS assistance. Drift: <0.02m / s Timing Accuracy: 1us Reference Coordinate System: WGS-84 Maximum Altitude: 18,000 m Maximum Speed: 500m/s Acceleration: <4g Tracking Sensitivity: -160dBm Acquisition Sensitivity: -146dBm Cold Start Time: 32s (average) Warm Start: 32s (average) Hot Start Time: 1 second (average) Recapture Time: 0.1s (average) Working Temperature: -30 degrees to +80 degrees Package List: 1 x GPS Module Package List 1 x GPS Module