Quantity   Component name
1 × Heschen M18 Capacitive Proximity Sensor Switch LJC18A3-B-Z/BX Mounting hole diameter: 18mm Detecting distance: 1-10mm Working voltage: 10-30 VDC Current output: 200mA Output type: NPN NO(Normally Open) Cable length: 120cm/49" Detection Object: Can detect any dielectric