It is a component widely used in the automatic control industry for detecting, controlling, and non-contact switching. When the proximity switch is close to a target object, it sends out a control signal. As a capacitive-type proximity switch, it can detect not only conductive materials but also non-conductive materials such as liquids and powders—including plastic, water, glass, and oil. It is widely used in machinery, papermaking, and light industry applications for position limiting, orientation detection, counting, and speed sensing. Product Name: Capacitive Proximity Switch Model: LJC30A3-H-Z/AY Operating Principle: Capacitive Sensing Wiring Type: Cylindrical DC 3-wire (Brown, Black, Blue) Housing Type: Cylindrical Output Current: 300 mA Supply Voltage: DC 6–36 V Cable Length: 120 cm (47 in) Operating Temperature: –25 °C to +70 °C (non-freezing conditions) Head Diameter: 30 mm Sensing Distance: 1–25 mm Output Type: PNP Normally Closed (NC) Housing Material: Plastic and alloy Net Weight: 147 g Color: Silver, yellow, gray Package Includes: 1 × Capacitive Proximity Switch Note: Due to variations in lighting and screen displays, the product color may differ slightly from the image shown. Measurement tolerance: ±1–3 cm.