Level monitoring for DIN rail 1 changeover contact for 16 A, contact material: AgCdO, machine design: 35 mm wide, monitoring of up to 3 sensors, sensitivity adjustable from 5 to 450 kOhm, delay time 0.5 or 7 seconds selectable, fill or emptying monitoring function selectable, LED status display, supply voltage 230 V AC, relay protection class: IP 20.