The 857-402 Universal Isolation Amplifier from Wago, sets a new standard in the 6 mm class with 450 factory-calibrated signal combinations, an input voltage range of +/- 200 V, and scalability across the entire measurement range. Furthermore, KTY and Ni measuring transducers, relay modules, supply and through modules, as well as optocouplers complete the product range. The possible input signals range from ± 0.3mA to ± 100mA and ± 60mV to ± 200V. The amplifier contains no potentiometer so there is no measurement range limitation by an end stop. The module and its teach-in switch are vibration-proof. The universal isolation amplifier can be switched between limiting and analog behavior via "clipping" function.