A measurement device (26, 28, 800, 900) for measuring at least one physiological parameter comprising an integrated switching device being operable by a non-radio frequency switching activation signal generated by an external switching activation device (1000, 1100), a measurement unit for measuring at least one physiological parameter and a radio frequency signal transmitting device for transmitting a measured value of the at least one physiological parameter wherein the measurement unit and/or radio frequency signal transmitting device are/is activated if the integrated switching device is in a first switching status and deactivated if the integrated switching device is in a second switching status.