# Does the SHT sensor in iDryer need calibration, and how does SHT30 differ from SHT31

**URL:** <https://forum.idryer.org/t/does-the-sht-sensor-in-idryer-need-calibration-and-how-does-sht30-differ-from-sht31/1691>\
**Category:** iDryer\
**Created:** [February 23, 2026, 9:07pm UTC](https://forum.idryer.org/t/does-the-sht-sensor-in-idryer-need-calibration-and-how-does-sht30-differ-from-sht31/1691 "2026-02-23T21:07:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![evgenii\_komissa\_8bc4](https://forum.idryer.org/letter_avatar_proxy/v4/letter/e/aeb1de/32.png) [@evgenii\_komissa\_8bc4](https://forum.idryer.org/u/evgenii_komissa_8bc4)\
**Post date:** [February 23, 2026, 9:07pm UTC](https://forum.idryer.org/t/does-the-sht-sensor-in-idryer-need-calibration-and-how-does-sht30-differ-from-sht31/1691/1 "2026-02-23T21:07:56Z")

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And is this calibration actually relevant for the SHT, or should it change correctly without any adjustment?  
 ![](https://forum.idryer.org/uploads/default/original/2X/0/0b3e57cae9feda505bc3f25a273f5416a7ddb3d3.jpeg)

> **🇷🇺 Оригинал**
>
> а вот эти калибровка актуально для sht проводить или он должен без корректировки правильно изменять?  
> ![](https://forum.idryer.org/uploads/default/original/2X/0/0b3e57cae9feda505bc3f25a273f5416a7ddb3d3.jpeg)

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**Author:** ![ruslan\_p\_261](https://forum.idryer.org/letter_avatar_proxy/v4/letter/r/f04885/32.png) [@ruslan\_p\_261](https://forum.idryer.org/u/ruslan_p_261)\
**Post date:** [February 23, 2026, 9:09pm UTC](https://forum.idryer.org/t/does-the-sht-sensor-in-idryer-need-calibration-and-how-does-sht30-differ-from-sht31/1691/2 "2026-02-23T21:09:23Z")

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This is more for the BME280, i.e. if the SHT31 is off, it will work with it too, but the SHT31 is linear in this range.

> **🇷🇺 Оригинал**
>
> Это скорее для bme280, т.е. если sht31 врёт, то оно будет работать и с ним, но sht31 линеен в этом диапазоне.

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**Author:** ![deen\_500](https://forum.idryer.org/letter_avatar_proxy/v4/letter/d/b9bd4f/32.png) [@deen\_500](https://forum.idryer.org/u/deen_500)\
**Post date:** [February 23, 2026, 9:11pm UTC](https://forum.idryer.org/t/does-the-sht-sensor-in-idryer-need-calibration-and-how-does-sht30-differ-from-sht31/1691/3 "2026-02-23T21:11:09Z")

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And is the SHT30 the same thing, or did I mess up the order again?

> **🇷🇺 Оригинал**
>
> А sht30 это тоже самое или я опять лопухнулся с заказом?

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**Author:** ![ruslan\_p\_261](https://forum.idryer.org/letter_avatar_proxy/v4/letter/r/f04885/32.png) [@ruslan\_p\_261](https://forum.idryer.org/u/ruslan_p_261)\
**Post date:** [February 23, 2026, 9:13pm UTC](https://forum.idryer.org/t/does-the-sht-sensor-in-idryer-need-calibration-and-how-does-sht30-differ-from-sht31/1691/4 "2026-02-23T21:13:02Z")

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Read the TDS, in some part of the range it’s not as linear as the 31. I don’t remember anymore.

> **🇷🇺 Оригинал**
>
> Почитай tds, он в какой-то части диапазона не так линеен как 31, не помню уже