The Portable GPS Sensor may be placed near a window and attaches to your PC via a standard USB port.
This GPS is powered by the SiRF Star III chipset and is contained in a waterproof enclosure.
The included drivers work with Windows Vista, Windows XP, and Windows 2000.
Additional Specifications: NMEA 0183 V2.2 protocol, 20 channels, dimensions - 2.2 in x 2.08 in x 0.88 in, 3.38 oz, ±100 ns synchronized to GPS time, no WAAS or EGNOS Support