Feature:1. Capacitive Proximity Switch: This switch is non recessed type NPN normally open mode capacitive proximity switch2. 470mm Wiring Length: The wire length of the proximity switch is 470mm, the detection distance is about 5mm, has stable and reliable performance3. Sturdy and Durable: The housing is made of nickel plated brass, and the detection external is made of ABS, which is sturdy and durable4. Detection Object: The sensor proximity switch can detect metal, non metal such as plastic, glass, wood, liquid such as water, oil, etc.5. Applicable Models: The capacitive sensor proximity switch is used for 3D printer, applicable for ET4 series, for ET4, 4 ProSpecification:Item Type: Capacitive Proximity SwitchMaterial: Brass nickel plated, ABSInstallation Type: Non recessedAction Mode: NPN normally openDetection Distance: 5mm 10 percent Lag Distance: Less than 10 percent of the detection distanceDetection Object: Metal, non metal: plastic, glass, wood, liquid: water, oil, etc.Use Voltage: DC 6-36VOperating Ambient Temperature: -25C to 65C, no freezingOperating Environment Humidity: 35-95 percent RHApplicable Model: For ET4 series, for ET4, 4 ProWiring Length: Approx.470mm or 18.5in.Package List:1 xCapacitive Proximity Switch