With multiple protection circuits including power supply reverse connection protection, surge protection, and overcurrent protection. Suitable for security equipment, textile equipment, CNC machine tools, automated production lines, electronic machinery, and similar industrial applications. IP67 rated protection grade with a fully enclosed ABS plastic housing, providing insulation, waterproof, oil-proof, shock-resistant, and high-temperature resistance performance. Enhanced anti-interference capability through a self-developed specialized IC. Utilizes a Hall-effect proximity switch for high accuracy. Package Includes: 1 x Proximity Switch, 2 x Nut, 2 x Gasket Item Type: Proximity Switch Model: PR18-5DN Output Mode: DC 3-Wire NO NPN Working Voltage: DC 10–30V Output Current: 200mA Shape Diameter: 18mm Detection Distance: 5mm Detection Mode: Electromagnetic Induction Wire Length: 1.8m Type: Hall Proximity Switch Detection Objects: Metal