# How to calibrate Sous-vide circulator

**URL:** <https://community.inkbird.com/t/how-to-calibrate-sous-vide-circulator/443>\
**Category:** Questions & Answers\
**Created:** [April 1, 2022, 4:59pm UTC](https://community.inkbird.com/t/how-to-calibrate-sous-vide-circulator/443 "2022-04-01T16:59:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gbam](https://avatars.discourse-cdn.com/v4/letter/g/258eb7/32.png) [@Gbam](https://community.inkbird.com/u/Gbam)\
**Post date:** [April 1, 2022, 4:59pm UTC](https://community.inkbird.com/t/how-to-calibrate-sous-vide-circulator/443/1 "2022-04-01T16:59:00Z")

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If my instant-read thermometer - which I know is accurate - consistently reads 2 degrees less than the ISV200W circulator, then when calibrating the circulator, do I ADD 2 degrees or SUBTRACT 2 degrees?

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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:** [April 2, 2022, 2:25am UTC](https://community.inkbird.com/t/how-to-calibrate-sous-vide-circulator/443/2 "2022-04-02T02:25:59Z")

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Hello,  
If the reading of the ISV-200W is 2 degrees higher than the actual, please set subtract 2 degrees.