Turck Isolating Switching Amplifier, 1-Channel, Series: IM Series, NAMUR Sensor Input, Relay/NO Output, 20/250 VAC, 20/125 VDC, 2 A, 40/70 Hz Frequency, =3 W Power, Screw Connection, DIN Rail/Panel Mounting, IP20 Enclosure, 104 x 18 x 110 mm Size, ABS/Polycarbonate