proximity sensor & proximity switch 1) inductive or capactive 2) Sensing distance 2-10mm 3) ... , M30; 5) Different application, DC 3 wires, DC2 wires or AC 2 wires. TK series square shape inductive type has below ... 5mm to 35mm; 5) Different application, DC 3 wires or AC 2 wires. TC series column shape capacitive type with follow ... , including M18, M30; 5) Different application, DC 3 wires or AC 2 wires.