Drum rotation sensor Eurosens Degree Bt when attached to the drum surface can measure a list of parameters:
These parameters are transmitted over Bluetooth BLE interface to compatible GPS trackers, for example, Teltonika.
Sensor can work as standalone device too. Special Android App can be used to read the data from internal memory of Eurosens Degree Bt.
In addition to parameters listed above, you can read with Android App also history of drum operation.