A specialized small and waterproof GNSS tracker for insurance market solutions. Comes with built-in accelerometer. Has Bluetooth for external devices and low energy sensors. Detects crashes according to accelerometer data, has an internal battery that allows systems to function without an external power source in the form of the car's accumulator battery. The High Gain GNSS antenna allows mounting just under the hood. Has a special clamp connector for quick power cable connection to the battery. built-in accelerometer has an extremely precise crash trace functionality. An internal memory of 128MB. Visit this page if you want to know more - https://www.teltonika-gps.com/product/fmt100/