China Aerospace Telecommunications Limited (Castel Group for short), founded in 1997, is a subsidiary of China Aerospace Science and Technology Corporation (CASC). As one of the co-founders of China GPS Association, Castel Group has over 10 years experiences in GPS and LBS application, wireless, communication and access, and are engaged in R&D and manufacturing and provisioning of customized integrated solutions. Castel GPS trackers are designed for different purposes like vehicle, pet or personal tracking. These devices use most high-end hardware to improve GPS units' performance. Website: http://www.castelecom.com/
Location and tracking The device features a high-precision GPS with the accuracy in the range of 5 meters, support A-GPS, LBS location when GPS isn't available, and supports only continuous tracking mode. No GLONASS support.
Location and tracking The device is using GPS for location tracking, and doesn't support GLONASS. The GPS accuracy for this device is in the range of 15 meters. Device only supports continuous tracking mode.
PT-690 is a portable pet GPS tracker. Based on existing GSM /GPRS network and GPS satellites, this product can locate and monitor any remote targets by SMS or internet.
PT-718 is a portable personal GPS tracker with low power consumption. Working based on existing GSM /GPRS network and GPS satellites, this small and powerful tracking device is developed for human, vehicle and pet etc.
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