Analog three-wire measuring transducer for mounting on a mounting rail. The measuring transducer, which is intended for industrial use, measures the temperature using a resistance thermometer. The output signal is available in a temperature-linear manner. The completely analog signal path enables extremely fast response times of the output when the temperature changes (analog continuous measurement instead of digital measurement rate). This results in a low-noise and interference-resistant output signal. Maximum precision - even with small measuring ranges - is ensured by the measuring range-specific amplification. Digital communication enables the measuring transducer to be adapted to the measuring task (measuring range, sensor breakage and fine adjustment).