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Rectangular plastic sensor with red LED and 2 m cable

Sick

Sick WT4-2P132 Photoelectric Proximity Sensor PNP

SKU CH-A37D-C7DX1

A photoelectric proximity sensor with background suppression, sensing 20 mm to 250 mm using visible red light and a PNP complementary output

  • Detects objects up to 250 mm with background suppression
  • Operates on 10–30 V DC supply with PNP complementary output
  • IP67 enclosure resists dust and water in harsh environments
  • Compact 17.6 × 75.5 × 33.5 mm housing fits tight spaces
  • Visible red LED at 675 nm enables precise alignment

Sick WT4-2P132 Photoelectric Sensor

The Sick WT4-2P132 is a rectangular photoelectric proximity sensor with background suppression. It operates on 10 V DC to 30 V DC supply voltage and provides a PNP complementary switching output. The sensor detects objects from 20 mm to 250 mm using visible red light at 675 nm wavelength.

Installation uses 4-wire PVC cable connection

Connection is made via a 2 m, 4-wire PVC cable with circuit protection A, C, and D. The sensing range adjusts using a 4-turn potentiometer for precise setup. IP67 enclosure rating protects against dust and water ingress during mounting. Response time is 2.5 ms with 200 Hz switching frequency.

Suits industrial automation needing background

This sensor suits applications requiring reliable detection regardless of background objects. The 120 g ABS housing withstands –25 °C to +60 °C operating temperatures. Buyers needing longer sensing distances or different output types should consider alternative sensor models.

How it compares

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

Price $195.99
Pricier than about 78% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WT4-2P132

Questions about this item

How can I verify the WT4-2P132 sensor is working correctly after installation?

Apply 10 V DC to 30 V DC supply voltage; the complementary PNP outputs should toggle within 2.5 ms response time when an object enters the 50 mm to 250 mm sensing range, confirmed by the visible red LED light spot at 250 mm distance.

What comes in the box with the WT4-2P132 and what must I purchase separately?

The sensor includes a 2 m, 4-wire PVC cable permanently attached; you must supply a 10 V DC to 30 V DC power source and any mounting hardware for the 17.6 mm x 75.5 mm x 33.5 mm ABS housing.

Which sensing range version of the WT4-2P132 should I choose for my application?

This model provides a fixed 50 mm to 250 mm sensing range with background suppression using 675 nm visible red light; select it when detection within that distance span suits the target object and ambient conditions.

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