---
title: What is a contrast sensor?
description: Balluff's contrast sensors
---

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# What is a contrast sensor?

## Balluff's contrast sensors

Contrast sensors are high-resolution diffuse sensors that distinguish objects based on their gray values. Balluff's rugged contrast sensors recognize even small differences in contrast, have a high switching frequency up to 30 kHz and are therefore particularly fast. They enable high positioning precision and are appropriate for a variety of applications, for example, in the printing and packaging industry.

A variety of models with various light types and functions are available.

![](https://kb.innovatingautomation.asia/hs-fs/hubfs/image-png-Aug-29-2020-08-21-45-67-AM.png?width=486&name=image-png-Aug-29-2020-08-21-45-67-AM.png)

 

**BKT Contrast Sensor Product Overview**

**![](https://kb.innovatingautomation.asia/hubfs/image-png-Aug-29-2020-08-26-00-47-AM.png)**

    ![](https://kb.innovatingautomation.asia/hubfs/image-png-Aug-29-2020-08-30-06-24-AM.png)

  ![](https://kb.innovatingautomation.asia/hs-fs/hubfs/image-png-Aug-29-2020-08-30-57-26-AM.png?width=104&name=image-png-Aug-29-2020-08-30-57-26-AM.png)              ![](https://kb.innovatingautomation.asia/hs-fs/hubfs/image-png-Aug-29-2020-08-31-41-13-AM.png?width=138&name=image-png-Aug-29-2020-08-31-41-13-AM.png)          ![](https://kb.innovatingautomation.asia/hs-fs/hubfs/image-png-Aug-29-2020-08-33-02-50-AM.png?width=107&name=image-png-Aug-29-2020-08-33-02-50-AM.png)          ![](https://kb.innovatingautomation.asia/hs-fs/hubfs/image-png-Aug-29-2020-08-34-07-46-AM.png?width=99&name=image-png-Aug-29-2020-08-34-07-46-AM.png)   ![](https://kb.innovatingautomation.asia/hs-fs/hubfs/image-png-Aug-29-2020-08-36-48-07-AM.png?width=619&name=image-png-Aug-29-2020-08-36-48-07-AM.png) 

 

 

**[Learn more about contrast details](https://www.balluff.com/local/in/productfinder/#/ca/A0001/cg/G0103/product/F01324)**

 

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