A device and a method for performing a measurement on a rotating part (11) of rotating machinery includes a measurement device (1), which is mounted at the rotating part (11), for measuring at least one parameter of the rotating part (11), a sender (2) for receiving measuring data from the measurement means (1) and including at least one radio frequency module (22), particularly a Bluetooth® module, for the wireless transmission (8) of data based on the received measuring data, a receiver (5) including a radio frequency module, particularly a Bluetooth® module, for receiving the data transmitted from the sender (2), and a processing unit (4) connected to the receiver (5) and provided for processing measuring data contained in data received from the receiver (5). The device can be applied for particularly long term online monitoring of rotating machinery like steam turbines, gas turbines, or generators.