Feature: 1. Capacitive Proximity Switch: This switch is non recessed type NPN normally open mode capacitive proximity switch 2. 470mm Wiring Length: The wire length of the proximity switch is 470mm, the detection distance is about 5mm, has stable and reliable performance 3. Sturdy and Durable: The housing is made of nickel plated brass, and the detection external is made of ABS, which is sturdy and durable 4. 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 Pro Specification: Item Type: Capacitive Proximity Switch Material: Brass nickel plated, ABS Installation Type: Non recessed Action Mode: NPN normally open Detection Distance: 5mm ±10% Lag Distance: Less than 10% of the detection distance Detection Object: Metal, non metal: plastic, glass, wood, liquid: water, oil, etc. Use Voltage: DC 6-36V Operating Ambient Temperature: -25°C to 65°C, no freezing Operating Environment Humidity: 35-95%RH Applicable Model: For ET4 series, for ET4, 4 Pro Wiring Length: Approx.470mm/18.5in. Package List: 1 x Capacitive Proximity Switch