VK-172 USB GPS Receiver Dongle Adapter - Reliable GPS/GLONASS receiver that connects to your device via USB for easy setup and operation. - Integrated smart antenna provides strong, stable GPS/GLONASS signal reception for accurate positioning and navigation across various applications. - Wide compatibility with maps and U-Center; suitable for auto navigation, auto alarm, tracking, security systems, personal positioning, surveying, and agricultural applications. - Precise positioning with L1 [42MHz] reception and 56 tracking channels; supports DGPS (WAAS, EGNOS, MSAS) for higher accuracy. - Use scenarios: - In-vehicle navigation and fleet tracking using maps and U-Center. - Auto alarm, security systems, and asset monitoring that require reliable location data. - Personal positioning, field surveying, and precision farming where accurate coordinates are essential.