# Cant Set Controller ITC-306A to min temp level below 20c

**URL:** <https://community.inkbird.com/t/cant-set-controller-itc-306a-to-min-temp-level-below-20c/54853>\
**Category:** Questions & Answers\
**Tags:** smart-controller, smart-sensors\
**Created:** [May 29, 2023, 11:01pm UTC](https://community.inkbird.com/t/cant-set-controller-itc-306a-to-min-temp-level-below-20c/54853 "2023-05-29T23:01:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![deankford](https://avatars.discourse-cdn.com/v4/letter/d/858c86/32.png) [@deankford](https://community.inkbird.com/u/deankford)\
**Post date:** [May 29, 2023, 11:01pm UTC](https://community.inkbird.com/t/cant-set-controller-itc-306a-to-min-temp-level-below-20c/54853/1 "2023-05-29T23:01:15Z")

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Hi,  
I have a Wi-Fi Aquarium Temperature Controller ITC-306A and would like to set the min temperature below 20 degrees. The app or the control box has no option to go below 20c

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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:** [May 30, 2023, 3:40am UTC](https://community.inkbird.com/t/cant-set-controller-itc-306a-to-min-temp-level-below-20c/54853/2 "2023-05-30T03:40:55Z")

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Hello,  
The ITC-306A is available in 2 versions.  
In the first version, the temperature range is 20.0°C to 35.0°C / 68.0°F to 95.0°F. It is not possible to set it below 20°C.