# Shelly 1 + showing F instead of C **URL:** \ **Category:** Apps\ **Created:** [December 1, 2023, 9:18pm UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495 "2023-12-01T21:18:52Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Jacob\_Jensen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jacob_jensen/32/83155_2.png) [@Jacob\_Jensen](https://community.homey.app/u/Jacob_Jensen)\ **Post date:** [December 1, 2023, 9:18pm UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495/1 "2023-12-01T21:18:52Z")
I just added 2 x Shelly 1 plus. The device has an internal temperature sensor but is displaying the temperature in Fahrenheit instead of Celsius. How can I change this? ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [December 2, 2023, 2:41am UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495/2 "2023-12-02T02:41:38Z")
Here’s lots of info, pls read this post but also all following post in that thread: > [@Wrong Temperature Values showing in Homey Pro](https://community.homey.app/t/wrong-temperature-values-showing-in-homey-pro/89936/6): > > Just as information, because that could affect other apps, too. Homey uses °C internally as unit for thermostats. If the localization is set to °F, only tbe GUI is converting the temperature to °F. The thermostat itself uses °C. So every app must use °C to set thermostat capabilities. So it depends on the app whether it converts to °C or not. ---
**Author:** ![Jacob\_Jensen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jacob_jensen/32/83155_2.png) [@Jacob\_Jensen](https://community.homey.app/u/Jacob_Jensen)\ **Post date:** [December 2, 2023, 10:17am UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495/3 "2023-12-02T10:17:11Z")
It actually looks like it is providing the reading in C which meant the sensor is totally worthless as the temp in the garage is around 2 degrees C right now. Not 35… ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/c/8cd23f11d475327732de715e9702e71d881d3636.png) ---
**Author:** ![Phuturist](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/phuturist/32/49_2.png) [@Phuturist](https://community.homey.app/u/Phuturist)\ **Post date:** [December 2, 2023, 10:35am UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495/4 "2023-12-02T10:35:37Z")
This is the device temperature, not the environment temperature. ---
**Author:** ![Jacob\_Jensen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jacob_jensen/32/83155_2.png) [@Jacob\_Jensen](https://community.homey.app/u/Jacob_Jensen)\ **Post date:** [December 2, 2023, 1:23pm UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495/5 "2023-12-02T13:23:44Z")
Thanks. Makes sense but really not useful for anything other that seeing if the thing is about to catch fire. Also still not sure if the reading is correct. Device temperature at 35C in a cold garage… ---
**Author:** ![Phuturist](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/phuturist/32/49_2.png) [@Phuturist](https://community.homey.app/u/Phuturist)\ **Post date:** [December 2, 2023, 1:40pm UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495/6 "2023-12-02T13:40:47Z")
> [@Jacob\_Jensen](#): > > Makes sense but really not useful for anything other that seeing if the thing is about to catch fire. It’s never sold under the assumption you can measure the outside temperature. You can blame the thing for your own incorrect assumptions. > [@Jacob\_Jensen](#): > > Also still not sure if the reading is correct. Device temperature at 35C in a cold garage… Sound about right me, do your homework and look into chip temperatures. ---
**Author:** ![Jacob\_Jensen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jacob_jensen/32/83155_2.png) [@Jacob\_Jensen](https://community.homey.app/u/Jacob_Jensen)\ **Post date:** [December 2, 2023, 2:07pm UTC](https://community.homey.app/t/shelly-1-showing-f-instead-of-c/96495/7 "2023-12-02T14:07:43Z")
Thanks for you very constructive feedback…I did not buy it to measure temperature, but found out when Homey was reporting a temp that did not make sense at first. I will stop bothering you now. Hopefully you can still enjoy the rest of the weekend