Features COPPER ALLOY SHELL: Made of premium copper alloy material, the shell of the switch is strong and sturdy, wear resistant and corrosion resistant, reliable for long term use. ACCURATE DETECTION: This proximity switch has a built in intelligent sensing chip, featuring anti interference, quick response and accurate detection. IP67 PROTECTION: This 3 wires normally open proximity sensor switch is waterproof and oil resistant, choose with confidence! (Not suitable for long term exposure to liquid environments). LED INDICATOR: Operation is made easier and clearer when a metal object is detected because the light turns on to indicate normal open and turns off to show normal close with the help of this proximity switch. IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the working efficiency! Specification: Item Type: Proximity Sensor Switch Material: Copper Alloy Voltage: 6-36VDC Output Format: NPN Contact Type: NO Current: 100mA Detection Distance: Approx. 1mm / 0.04in Probe Size: Diameter Approx. 6mm / 0.24in, Length Approx. 34mm / 1.34in Package List:2 x Proximity Switch 4 x Washer Fixing Accessories  4 x Hex Threaded Fixing Accessories   Package List 2 x Proximity Switch 4 x Washer Fixing Accessories 4 x Hex Threaded Fixing Accessories