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The W24 features a rugged metal housing that has passed IP 69K testing, which ensures reliability in harsh industrial conditions. These sensors are highly resistant to ambient light and offer a very long sensing range with a high operating reserve. As a result, there are optional a standard front lens heating or a high-power front lens heating versions, similar to automotive rear window defrost, for use in environments with extreme temperatures fluctuation. An alarm output option enables early detection of contamination, reducing downtime that results from contamination interruptions. Variants with DC voltage and universal voltage DC/AC and multiple connectivity options provide additional flexibility within the W24 family.


  • Robust die-cast zinc housing with IP 69K protection class
  • Operating elements protected by a hood
  • High ambient light immunity of the proximity sensors
  • Switchable: PNP/NPN and light/dark switching
  • DC or AC/DC type with UL approval
  • Optional: test input, time delays, contamination signaling at the alarm output, and front-screen heating, also available in a high-power version
  • M12 male connector or M16 screw connection: rotatable through 90°



(W x H x D)

27 mm x 87.5 mm x 65 mm
Sensing range max. 100 mm … 2,500 mm 1)
  100 mm … 2,000 mm 1)
  100 mm … 3,000 mm 1)
  300 mm … 900 mm 1)
  100 mm … 1,200 mm 1)
  0 m … 22 m 2)
0 m … 60 m
Light source LED
Type of light Infrared light / visible red light
Enclosure rating IP67 / IP69K
Housing material Metal zinc diecast
  PTFE coating zinc diecast
Adjustment Potentiometer
1) Object with 90 % reflectance (referred to standard white, DIN 5033).
2) Reflector PL80A.

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