Superior quality chips and components provide quick response, stable performance, strong anti-interference, and high reliability. Heat-resistant ABS flame-retardant housing with a 2-meter durable cable offering excellent electrical conductivity. Equipped with a high-quality sensor probe for sensitive detection. Features a wide voltage range, high repeatability, fast frequency response, and extended service life. Capable of detecting various materials including metal, wood, paper, and more, making it highly practical and versatile. Package Includes: 1 x Capacitive Proximity Switch 2 x Fastening Nuts Item Type: Capacitive Proximity Switch Output Mode: CR18-8AC: NC (Normally Closed) CR18-8AO: NO (Normally Open) Power Supply Voltage: 90–250V AC Working Current: Two-wire, 400mA Diameter of Induction Cylinder: Approx. 18mm / 0.7in Detection Distance: Approx. 8mm / 0.3in ±10% Power Cord Length: Approx. 1.2 meters / 3.9ft Detection Objects: Metal, wood, paper, etc. Operating Temperature: -25°C to +75°C Storage Temperature: -45°C to +80°C Humidity: <90% Cable Jacket Material: PVC Sensor Head Material: ABS How to Use: The two-wire switch must be pre-connected to the power source. Do not connect directly to the power supply. Always follow the color coding specified in the wiring diagram.