Existing Lesman and A-Tech customers, log in using your company email to see your qualified prices. Need help?
Photoelectric
Photoelectric sensors use light to find out if an object is present, missing, or how far away it is. The main types are through-beam, retro-reflective, and diffuse sensors, which help in various industrial tasks by detecting objects or materials in different ways.
When choosing photoelectric sensors, it's important to think about where the sensor will be placed and the size of the objects you want to detect. You should also consider the environment, like temperature and dust, to make sure the sensor works well in that setting.
Don't see the product you need? Call us at 800-225-6102.
![Banner Q5XKLAF3000-Q8 Adjustable Field Multi-Purpose Photoelectric Sensor [814578]](https://www.lesman.com/media/catalog/product/5/0/500-banner-q5xklaf3000-q8-photoelectric-sensor.jpg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![SICK WL9G-3P2432 Photoelectric Sensor [1049083]](https://www.lesman.com/media/catalog/product/s/i/sick-wl9l-photoelectric-sensor.jpg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![SICK GRTE18S-P2347 GR18 Photoelectric Sensor [1058193]](https://www.lesman.com/media/catalog/product/s/i/sick-grte18s-p2347-photoelectric-sensor.jpg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18AP6LP-93245 WORLD-BEAM QS18 Series: Polarized Retro [93245]](https://www.lesman.com/media/catalog/product/placeholder/default/135-Kele-IA-60-Watermark-Small.png)
![Banner QS18APWDXLQ2 WORLD-BEAM QS18 Series Photoelectric Diffuse Infrared Sensor [79807]](https://www.lesman.com/media/catalog/product/q/s/qs-18_1_1.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18EK6EQ5 WORLD-BEAM QS18 Series Infrared Emitter [802821]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18-photoelectric_1_2.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18EK6RQ8 WORLD-BEAM QS18 Series Photoelectric Receive [802823]](https://www.lesman.com/media/catalog/product/b/a/banner-qs-18-photoelectric_2.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18EP6DBQ8 WORLD-BEAM QS18 Expert Series Photoelectric Diffuse Sensor [71991]](https://www.lesman.com/media/catalog/product/b/a/banner-diffuse-photoelectric.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18EP6DQ WORLD-BEAM QS18 Expert Series Photoelectric Diffuse Sensor [69210]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18-photoelectric_1_1.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18APH6FF150Q8 WORLD-BEAM QS18 Series Fixed-Field Background Suppression Photoelectric Sensor [82317]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18-fixed-field-photoelectric-sensor.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18AP6LP-93093 WORLD-BEAM QS18 Series Polarized Retro Photoelectric Sensor [93093]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18-world-beam-polarized-retro-photoelectric-sensor.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18AP6LP-93092 WORLD-BEAM QS18 Series Polarized Retro Photoelectric Sensor [93092]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18ap6lp-93092-world-beam-polarized-retro-photoelectric-sensor.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS18AB6AF300Q5 WORLD-BEAM QS18 Series Adjustable Field Photoelectric Background Suppression Sensor [11461]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18-photoelectric-sensor.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186LEQ8 WORLD-BEAM QS18 Series: Laser Class 1 Photoelectric Emitter [70253]](https://www.lesman.com/media/catalog/product/b/a/banner-qs-18-photoelectric_1.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186LE212 WORLD-BEAM QS18 Laser Class 2 Horizontal Photoelectric Emitter [71366]](https://www.lesman.com/media/catalog/product/b/a/banner-qs186le212-photoelectric-laser-class-2.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186LE211Q8 WORLD-BEAM QS18 Series Laser Class 2 Vertical Line Photoelectric Laser Emitter [75965]](https://www.lesman.com/media/catalog/product/b/a/banner-laser-class-2-emitter-photoelectric_1.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186LE2 WORLD-BEAM QS18 Series Laser Class 2 Small Spot Laser Photoelectric Emitter [75951]](https://www.lesman.com/media/catalog/product/b/a/banner-laser-class-2-emitter-photoelectric.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186LE12Q8 WORLD-BEAM QS18 Series Laser Class 1 Horizontal Photoelectric Emitter [02759]](https://www.lesman.com/media/catalog/product/b/a/banner-qs-18-photoelectric.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186LE WORLD-BEAM QS18 Series Laser Class 1 Photoelectric Emitter [70252]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18-photoelectric_1.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186EVQ8 WORLD-BEAM QS18 Series Photoelectric Emitter [86444]](https://www.lesman.com/media/catalog/product/b/a/banner-qs18-photoelectric.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner QS186EQ5 WORLD-BEAM QS18 Series Photoelectric Emitter [64582]](https://www.lesman.com/media/catalog/product/q/s/qs18_2_5.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner Q85VR3D-T9 Q85 Series Diffuse with Output Timer [31654]](https://www.lesman.com/media/catalog/product/q/8/q85_1_1.jpg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner S18SP6LP W/30 S18 Series Polarized Retro. Epoxy Encapsulated Barrel-Mount Sensor [33947]](https://www.lesman.com/media/catalog/product/b/a/banner-s18-series-epoxy-barrel-mount-sensor.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)
![Banner SM2A312D MINI-BEAM Series Diffuse Industry Standard Sensor [25965]](https://www.lesman.com/media/catalog/product/b/a/banner-sm-mini-beam-photoelectric.jpeg?quality=80&bg-color=255,255,255&fit=bounds&height=300&width=240&canvas=240:300)