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Small rectangular plastic sensor with red lens and short cable ending in M12 connector

Sick

Sick WTV4-3P3441S38 Miniature Photoelectric Sensor PNP

SKU CH-ZFHX-TWTHE

Miniature photoelectric sensor with background suppression detects shiny or film-wrapped objects up to 30 mm using visible red PinPoint LED and PNP output

  • Detects shiny or film-wrapped objects with background suppression
  • PinPoint LED gives 7 mm × 5 mm spot at 20 mm
  • Switches in 0.5 ms at 1 000 Hz for fast lines
  • IP66 and IP67 rated for harsh environments
  • Operates from –40 °C to +60 °C on 10 V DC to 30 V DC

Miniature Photoelectric Sensor PNP

The Sick WTV4-3P3441S38 is a rectangular photoelectric proximity sensor with background suppression. It measures 16 mm by 39.5 mm by 12 mm and weighs 30 g. A visible red PinPoint LED emits at 650 nm, producing a 7 mm by 5 mm light spot at 20 mm distance. The housing uses ABS plastic with PMMA optics.

Ideal for detecting uneven or film-wrapped objects

This sensor suits automated lines that must sense shiny or irregular surfaces at close range. The 5-turn potentiometer allows fine adjustment between 3 mm and 30 mm. Builders who need longer sensing distances, analogue output or a different switching logic should look at other models.

Integrates with 10 V to 30 V DC systems

A 150 mm PVC cable with a 4-pin M12 male connector links the PNP light-switching output to the controller. The unit draws 20 mA and switches at 1,000 Hz with a response time under 0.5 ms. IP66 and IP66 ratings protect against dust and water jets from –40 °C to +60 °C.

How it compares

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Price $108.99
Pricier than about 55% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WTV4-3P3441S38

Questions about this item

What supply voltage must my system provide for the Sick WTV4-3P3441S38 sensor to operate?

The sensor requires a DC supply between 10 V and 30 V with ripple below 5 Vpp and draws up to 20 mA.

Will the 4-pin M12 connector on the 150 mm PVC cable mate with my existing M12 fieldbus cables?

Yes, the 4-pin M12 male connector follows the standard pin-out, so it plugs directly into compatible 4-pin M12 cables or distribution boxes.

How can I verify the sensor is detecting correctly after mounting and wiring?

With the potentiometer set for the target distance, the PNP output switches high (light-switching) when the red PinPoint LED spot hits the object; the yellow indicator LED on the housing confirms each switch event.

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