Sick Miniature photoelectric sensor

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Delivered between 28.2.2026 and 14.3.2026
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Product details

The WTB4S-3P3162V miniature light barrier from Sick is a high-precision reflex light sensor designed for indoor use. With a maximum switching distance of 4 mm to 500 mm, this device offers reliable object detection through the principle of background suppression. The light emitter uses a PinPoint LED that emits visible red light to ensure clear and precise detection. Its robust construction made of stainless steel V4A (1.4404, 316L) ensures durability and resilience in various applications. The miniature light barrier is easy to install and configure, thanks to the practical teach-in button that allows for user-friendly adjustments. With an IP69K protection rating, the device is also protected against dust and water, making it ideal for demanding environments.

  • Maximum switching distance of 4 mm to 500 mm
  • Robust housing made of stainless steel V4A (1.4404, 316L)
  • IP69K protection rating for high resilience
  • Easy configuration via teach-in button
  • PinPoint LED for precise object detection.

Key specifications

Exact colour description
Silver
Motion sensor type
Motion sensor
Item number
43690747

General information

Manufacturer
Sick
Category
Motion sensors
Manufacturer no.
1046387
Release date
7.3.2024

Colour

Colour
Silver
Exact colour description
Silver

Material

Material group
Metal
Material
Metal, Stainless steel V4A (1.4404, 316L)

Motion sensor properties

Motion sensor type
Motion sensor
Application range
Indoor
Protection type (IP code)
IP69K

Power supply

Power supply
Electrical connection

Smart home features

Smart Home
Compatible
Requires Smart Home Hub
No

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Items per sales unit
1x

Product dimensions

Length
2.22 cm
Height
4.92 cm
Weight
50 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Motion sensors» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Sick
    Not enough data
  • 1.eufy
    0 %
  • 1.Renkforce
    0 %
  • 3.Ring
    0.2 %
  • 4.Maclean
    0.3 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Sick
    Not enough data
  • 1.Aqara
    0 days
  • 1.BEG
    0 days
  • 1.Goobay
    0 days
  • 1.Pentatech
    0 days

Return rate

How often is a product of this brand in the «Motion sensors» category returned?

Source: Digitec Galaxus
  • Sick
    Not enough data
  • 1.Maclean
    0 %
  • 2.Homematic IP
    0.5 %
  • 2.Renkforce
    0.5 %
  • 4.Shelly
    0.7 %
Source: Digitec Galaxus