# Size of PID controllers

**URL:** <https://community.inkbird.com/t/size-of-pid-controllers/99445>\
**Category:** Questions & Answers\
**Tags:** smart-controller\
**Created:** [November 8, 2023, 6:13pm UTC](https://community.inkbird.com/t/size-of-pid-controllers/99445 "2023-11-08T18:13:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![klung](https://avatars.discourse-cdn.com/v4/letter/k/90db22/32.png) [@klung](https://community.inkbird.com/u/klung)\
**Post date:** [November 8, 2023, 6:13pm UTC](https://community.inkbird.com/t/size-of-pid-controllers/99445/1 "2023-11-08T18:13:11Z")

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The square size of these are 48 mm, but how is length and are there different lengths…?  
Best regards.!

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**Author:** ![Tania](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.inkbird.com/tania/32/88_2.png) [@Tania](https://community.inkbird.com/u/Tania)\
**Post date:** [November 10, 2023, 10:34am UTC](https://community.inkbird.com/t/size-of-pid-controllers/99445/2 "2023-11-10T10:34:34Z")

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Hello,  
The dimensions of the ITC-100 series and ITC-106 series controllers are the same.

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/2X/0/002e070f76b856adee3e0313bcd51994b523ef8f.png)