LJ12A3-4-Z/AY Proximity Sensor Switch

LJ12A3-4-Z/AY Proximity Sensor Switch is an excellent way to precisely detect when a metal object is at a given distance.

Since this is a non-contact sensor, it is ideally suited to situations where dust, dirt, or liquids may be present.

This specific sensor triggers when the sensor tip is 4mm away and features an LED that illuminates when the sensor is tripped.

Mounting this sensor is relatively easy – it has an extended threaded body allowing for a considerable adjustment.

Internally, this sensor is wired like an NPN transistor; the transistor’s base pin is triggered when the metal object is at a distance of 4mm.

Because of the higher voltage, the output will need to have the logic level shifted to a lower voltage to operate with a Raspberry Pi or Arduino.

Features

• Model: LJ12A3-4-Z/AY
• Shape: cylindrical straight 12MM
• Output: DC three-wire PNP normally open type
• Detection distance: 4mm
• Power supply voltage: 6-36VDC
• Output current: 300mA
• Can detect objects: metal body
• Housing Material: Metal (Copper)
• Detect Object: Iron
• Diameter: 12mm
• Cable Length: 1M/3.3Ft

Package Contains: 1x LJ12A3-4-Z/AY Proximity Sensor Switch

Development  Resources: demo codes, schematics, datasheets, etc

Reference for Arduino and reference to all matters

Ardunio from Wikipedia

Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods, and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles and display monitors.

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