Metal shell, CC type, 4mm detection distance, 3-wire system. Reverse power supply, short circuit protection, contact detection device. When the proximity sensor is close to a target object, it emits the control signal. Widely used in the machine tool industry, frequency counters, and other automatic control systems. Product: Inductive Proximity Sensor Model: LJ12A3-4-Z/BY Type: Inductive type sensor Type: DC 3 Type (Brown, Black, Blue) Switch Appearance Type: Cylinder Type, Metal Shell Output Type: PNP, NO Detection Distance: 4mm/0.2" Supply Voltage: DC 6-36V Output: 300 mA Detect Object: Iron Column Sensor Diameter: 12mm/0.5" Cable Length: 1.1M/43.3" External Material: Plastic, Metal Net Weight: 47g Color: Silver Tone, Blue, Black Package Contents: 1 x Inductive Proximity Sensor Note: Shooting and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.