Model: LJC18A3-B-Z/AX Method of detection: Capacitive Shape: diameter 18 mm cylinder Detection distance: 10mm Operating voltage: 6-36V DC Output Current: 300 mA Output: 3 wires, normally closed,NPN Detecting: metal, and non-metallic such as plastic, glass, water, oil; detection distance was detected with the body of conductivity, dielectric constant, water absorption, the volume varies, the maximum for the detection of a grounded metal distance. Weight: 90g