Ifm – IN0108
 Inductive dual sensor for valve actuators; Operating voltage [V] : 20…250 AC/DC; Protection class : II; Reverse polarity protection : yes; Output function : 2 x normally open; Max. voltage drop switching output DC [V] : 6.5; Max. voltage drop switching output AC [V] : 6.5; Minimum load current [mA] : 5; Max. leakage current [mA] : 2.5 (250 V AC) / 1.3 (110 V AC) / 0.8 (24 V DC); Permanent current rating of switching output AC [mA] : 250;  (350 (…50 °C)); Permanent current rating of switching output DC [mA] : 100; Short-time current rating of switching output [mA] : 2200;  (20 ms / 0,5 Hz); Switching frequency AC [Hz] : 25; Switching frequency DC [Hz] : 50; Short-circuit proof : no; Overload protection : no; Sensing range [mm] : 4; Real sensing range Sr [mm] : 4 ± 10 %; Operating distance [mm] : 0…3.25; Correction factor : steel: 1 / stainless steel: 0.7 / brass: 0.4 / aluminium: 0.3 / copper: 0.2; Hysteresis [% of Sr] : 1…15; Switch point drift [% of Sr] : -10…10; Ambient temperature [°C] : -25…80; Housing : rectangular; Mounting : non-flush mountable; Materials : PBT; Required protection : miniature fuse to IEC60127-2 sheet 1; ≤ 2 A; fast acting; Connector: 1 x M18