ifm electronic SL5101 DC air flow monitor

Flow sensors, air flow monitor, cylindrical design, process connection: 23 mm, 4-wire, DC, operating voltage: 24 V DC 25%, relay is activated when there is flow, connecting cable, 2 m, PUR / PVC cable, 4 x 0.5 mm, housing material: housing: PBT sensor surface: titanium, sensor material: PBT titanium