Meet Pod 3: a modular GPS tracker that can be used to keep track of your pet or valuable items. It combines GPS, WiFi, Bluetooth and Cellular technologies to help you locate your things in real-time. You can set up virtual fences for your pet and monitor activity trends on your smartphone. The device also records motion data.
Pod 3 combines with Sound, Light, Ultrasonic, and Battery modules to better serve you. It is waterproof and impact resistant. More info is available here.