1With multiple protection circuit such as power supply reverse connection protection circuit, surge protection circuit, overcurrent protection circuit. 2Suitable for security equipment, textile equipment, CNC machine tools, security equipment, automated production lines, electronic machinery, etc. 3IP67 protection grade, using fully enclosed ABS plastic shell and technical enclosure insulation waterproof, oil-proof, shock-resistant, high temperature. 4Improved anti-interference ability from its self-developed special IC. 5Adopts hall proximity switch with high accuracy. 1 x Proximity Switch2 x Nut2 x Gasket :BERMItem Type:Proximity SwitchModel:PR18-5DNOutput Mode:DC 3-Wire NO NPNWorking Voltage:DC10~30VOutput Current:200mAShape Diameter:18mm / 0.71inDetection Distance:5mmDetection Mode:Electro-Magnetic InductionWire Length: 1.8mType:Hall Proximity SwitchDetection Objects:Metal