Evaluation systems, evaluation unit for flow sensors, AC / relay, operating voltage: 85...265 V AC, nominal voltage: 90...240 V AC (45...65 Hz), normally open / normally closed programmable, no / nc progr., 1/2 -UNF plug connection, connection: 1 sensor, housing material: V4A / 316L / 1.4404 V2A / 304 / 1.4301 PC (Makrolon) PBT-GF 20 EPDM/X (Santoprene) brass