Description
Upgrade your automation or sensing projects with the LJC18A3-H-Z/BY Capacitive Proximity Sensor Switch — a high-performance, non-contact sensor capable of detecting a wide variety of materials including metal, plastic, glass, wood, and liquids.
Engineered with an M18 threaded cylindrical body and built-in LED indicator, this sensor offers adjustable sensitivity (1–10 mm) for flexible installation in both DIY and industrial applications. The PNP Normally Open output makes integration straightforward with PLCs, Arduino, and other microcontroller systems.
Whether you’re detecting object presence, liquid level, or end-stop positioning in machinery, this proximity sensor provides stable operation, high noise immunity, and long service life.
Perfect for makers, automation engineers, and manufacturing equipment designers who need reliable sensing with minimal wiring.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | LJC18A3-H-Z/BY |
| Sensor Type | Capacitive Proximity Sensor |
| Output Type | PNP, Normally Open (NO) |
| Detection Distance | 1 – 10 mm (adjustable) |
| Operating Voltage | DC 6 – 36 V |
| Maximum Output Current | 300 mA |
| Response Frequency | Approx. 10 Hz |
| Sensing Object | Metal, plastic, glass, wood, water, etc. |
| Output Indication | Red LED indicator (ON when detected) |
| Protection Features | Short-circuit, overload, reverse polarity |
| Operating Temperature | −25 °C ~ +70 °C |
| Body Material | Nickel-plated brass |
| Mounting Type | M18 threaded cylinder |
| Cable Length | Approx. 1 m (3-wire) |
| Wiring | Brown → V+, Blue → GND, Black → Output |
| Weight | Approx. 50 g |
Applications
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3D Printers & CNC Machines
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Robotics and Automation Systems
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Object or Level Detection
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Conveyor Systems & Packaging Lines
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Industrial Assembly & Positioning Control
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Smart DIY & IoT Sensing Projects
Package Includes
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1 × LJC18A3-H-Z/BY Capacitive Proximity Sensor (PNP NO, DC 6–36 V)
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1 × User Reference Guide (connection and wiring diagram)
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