We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small rectangular plastic sensor with red LED and cable

Sick

Sick WT100-2N1439 Miniature photoelectric sensor NPN

SKU CH-ARF3-PRHP1

Miniature photoelectric sensor detects objects up to 750 mm using visible red LED light with NPN switching output

  • Miniature 11 mm x 31 mm x 20 mm housing fits tight spaces
  • Visible red LED detects objects up to 750 mm away
  • NPN output switches in 0.5 ms for fast response
  • IP67 enclosure withstands dust and water ingress
  • 10 V DC to 30 V DC supply suits industrial power systems

Sick WT100-2N1439 miniature sensor

The Sick WT100-2N1439 is a miniature photoelectric proximity sensor with an NPN switching output. It operates on a 10 V DC to 30 V DC supply voltage with a maximum power consumption of 30 mA. The sensor uses visible red light at a 632 nm wavelength for detection tasks. It is suited for industrial automation where a compact rectangular housing is required.

Installation uses a supplied mounting bracket

Installation uses the supplied BEF-W100-A mounting bracket and a 2 m PVC cable with three wires of 0.18 mm² cross-section. The sensing range is adjusted via a potentiometer while a rotary switch selects light or dark switching mode. Circuit protection includes safeguards labelled A, B and D against wiring faults. The IP67 enclosure rating protects the ABS, PC and POM housing from dust and water ingress.

Sensing range and output constraints

The maximum sensing range reaches 1,200 mm with a practical sensing range up to 750 mm. At 1,000 mm distance the light spot diameter is approximately 75 mm. The NPN output switches a maximum of 100 mA with a response time of 0.5 ms and a switching frequency of 1,000 Hz. Output signal voltage stays below 1.8 V in the low state. The sensor operates between –25 °C and +55 °C and stores between –40 °C and +70 °C.

How it compares

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

Price $84.99
Cheaper than about 57% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSick
Model nameSICK WT100-2N1439

Questions about this item

How can I confirm the WT100-2N1439 is operating correctly after wiring it to a 10 V DC... 30 V DC supply?

Verify the NPN output switches between approx. VS and < 1.8 V when an object enters the 0 mm... 750 mm sensing range; the response time is = 0.5 ms at 1 000 Hz switching frequency.

What does the WT100-2N1439 package include and what must I source separately?

The box contains the sensor with 2 m PVC cable and mounting bracket BEF-W100-A; a 10 V DC... 30 V DC power supply and any additional wiring are not included.

Which WT100-2N1439 sensing-range version should I select for a 632 nm visible red light application?

This model provides a max sensing range of 0 mm... 1 200 mm and an operating range of 0 mm... 750 mm with 632 nm LED light; choose it when those distances match the installation.

More in Electrical Trade Tools & Kits

Similar items