Wireless Force and Accelerometer Sensor for the Philip Harris SensorDisc.The Force and Accelerometer Sensor can be connected to the SensorDisc via BlueTooth or via the miniUSB connector on the datalogger.Specification:Measurement: Force 3-axis accelerationForce Range: ±50NAcceleration Range: ±8gSampling Rate: 500HzPlease note: the SensorDisc Datalogger is not included.