---
title: What is a Balluff photoelectric sensor?
description: The types and functions of a photoelectric sensor
---

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# What is a Balluff photoelectric sensor?

## The types and functions of a photoelectric sensor

Balluff's capacitive photoelectric sensor includes diffuse sensors, retro-reflective sensors, and through-beam sensors.

The light source has a red light, includes infrared and laser type, NPN/P NP, Analog 4 ~ 20 ma, 0 to 10 VDC, and IO-LINK.

 

**1. Diffuse![漫反射及对射型传感器](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/%E5%85%89%E7%94%B5%E4%BC%A0%E6%84%9F%E5%99%A8/%E6%BC%AB%E5%8F%8D%E5%B0%84%E5%8F%8A%E5%AF%B9%E5%B0%84%E5%9E%8B%E4%BC%A0%E6%84%9F%E5%99%A8.png?width=399&name=%E6%BC%AB%E5%8F%8D%E5%B0%84%E5%8F%8A%E5%AF%B9%E5%B0%84%E5%9E%8B%E4%BC%A0%E6%84%9F%E5%99%A8.png)2. Retro-reflective sensors![镜面反射型传感器](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/%E5%85%89%E7%94%B5%E4%BC%A0%E6%84%9F%E5%99%A8/%E9%95%9C%E9%9D%A2%E5%8F%8D%E5%B0%84%E5%9E%8B%E4%BC%A0%E6%84%9F%E5%99%A8.png?width=417&name=%E9%95%9C%E9%9D%A2%E5%8F%8D%E5%B0%84%E5%9E%8B%E4%BC%A0%E6%84%9F%E5%99%A8.png)3. Through-beam sensors![对射型传感器](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/%E5%85%89%E7%94%B5%E4%BC%A0%E6%84%9F%E5%99%A8/%E5%AF%B9%E5%B0%84%E5%9E%8B%E4%BC%A0%E6%84%9F%E5%99%A8.png?width=428&name=%E5%AF%B9%E5%B0%84%E5%9E%8B%E4%BC%A0%E6%84%9F%E5%99%A8.png)4. Fiber and amplifer![用于塑料和玻璃纤维的纤维设备](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/%E5%85%89%E7%94%B5%E4%BC%A0%E6%84%9F%E5%99%A8/%E7%94%A8%E4%BA%8E%E5%A1%91%E6%96%99%E5%92%8C%E7%8E%BB%E7%92%83%E7%BA%A4%E7%BB%B4%E7%9A%84%E7%BA%A4%E7%BB%B4%E8%AE%BE%E5%A4%87.png?width=397&name=%E7%94%A8%E4%BA%8E%E5%A1%91%E6%96%99%E5%92%8C%E7%8E%BB%E7%92%83%E7%BA%A4%E7%BB%B4%E7%9A%84%E7%BA%A4%E7%BB%B4%E8%AE%BE%E5%A4%87.png)5. Photoelectric distance sensors![光电距离传感器](https://kb.innovatingautomation.asia/hs-fs/hubfs/Knowledge%20Base/Simplified%20Chinese/Image/%E5%85%89%E7%94%B5%E4%BC%A0%E6%84%9F%E5%99%A8/%E5%85%89%E7%94%B5%E8%B7%9D%E7%A6%BB%E4%BC%A0%E6%84%9F%E5%99%A8.png?width=411&name=%E5%85%89%E7%94%B5%E8%B7%9D%E7%A6%BB%E4%BC%A0%E6%84%9F%E5%99%A8.png)**

[Learn more about BALLUFF photoelectric sensors](https://www.balluff.com.cn/en/cn/productfinder/#/ca/A0001/cg/G0103)

 

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