# When to select a red light or IR photoelectric sensor?

**URL:** <https://forumautomation.com/t/when-to-select-a-red-light-or-ir-photoelectric-sensor/1492>\
**Category:** Uncategorized\
**Created:** [November 9, 2016, 1:26pm UTC](https://forumautomation.com/t/when-to-select-a-red-light-or-ir-photoelectric-sensor/1492 "2016-11-09T13:26:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![leeyock](https://forumautomation.com/letter_avatar_proxy/v4/letter/l/8dc957/32.png) [@leeyock](https://forumautomation.com/u/leeyock)\
**Post date:** [November 9, 2016, 1:26pm UTC](https://forumautomation.com/t/when-to-select-a-red-light-or-ir-photoelectric-sensor/1492/1 "2016-11-09T13:26:08Z")

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What is the advantages of using a red light over a IR photoelectric sensor? or vice versa?

Any applications for either to show the working principle? Thanks in advance!