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Small rectangular plastic sensor with M8 connector and teach button

Sick

Sick WLG4-3P2132 Miniature Photoelectric Sensor PNP

SKU CH-MFNH-10J7P

Miniature photoelectric retro-reflective sensor detects transparent objects up to 4.5 m with PinPoint LED and PNP output

  • Detects transparent objects with PinPoint LED
  • Sensing range up to 4.5 metres maximum
  • Compact 16 x 39.5 x 12 mm housing
  • IP67 and IP66 rated for harsh environments
  • PNP output switches in 0.5 ms response

Miniature Photoelectric Sensor

The Sick WLG4-3P2132 is a miniature photoelectric retro-reflective sensor designed for industrial automation tasks. Its rectangular housing measures 16 mm by 39.5 mm by 12 mm and weighs 30 g. The sensor detects transparent objects using visible red PinPoint LED light at 650 nm. It suits engineers needing precise presence detection in compact machinery.

M8 Connector Integration

The unit connects via an M8 3-pin connector and operates on 10 V DC to 30 V DC supply voltage with a 5 Vpp ripple allowance. It draws 20 mA current consumption and provides a PNP light-switching output rated at 100 mA maximum. Circuit protection covers supply polarity reversal, short-circuit and overvoltage. The sensor frees up mounting space with its small plastic ABS housing and PMMA optics.

IP67 IP66 Enclosure Rating

The enclosure meets IP67 and IP66 ratings for dust and water resistance in harsh environments. Operating temperature spans –40 °C to +60 °C while storage reaches –40 °C to +75 °C. Response time sits at 0.5 ms with a 1,000 Hz switching frequency. The light spot measures Ø 75 mm at 1.5 m distance and the reception angle is approximately 30°.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $107.99
Pricier than about 54% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WLG4-3P2132

Questions about this item

How far can the PinPoint LED detect a reflector before the 4.5 m limit is reached?

The sensor offers a maximum sensing range of 0.01 m to 4.5 m with a sensing range of 0.02 m to 3.5 m for reliable detection.

What is the switching frequency and response time during continuous operation?

The sensor operates with a switching frequency of 1,000 Hz and a response time of 0.5 ms for fast, consistent switching.

Which supply voltage and connector type are required to install the sensor?

The sensor requires a supply voltage of 10 V DC to 30 V DC and uses an M8, 3-pin connector for connection.

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