# What is the lowest set temperature on the ITC-308 WIFI?

**URL:** <https://community.inkbird.com/t/what-is-the-lowest-set-temperature-on-the-itc-308-wifi/275>\
**Category:** Questions & Answers\
**Created:** [January 21, 2022, 2:31am UTC](https://community.inkbird.com/t/what-is-the-lowest-set-temperature-on-the-itc-308-wifi/275 "2022-01-21T02:31:20Z")\
**Posts on this page:** 1\
**Showing post:** 2

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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:** [January 21, 2022, 3:40am UTC](https://community.inkbird.com/t/what-is-the-lowest-set-temperature-on-the-itc-308-wifi/275/2 "2022-01-21T03:40:15Z")

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> [@ChandlerFihn](#):
>
> I am attempting to use this unit to run the furnace in my garage. How low am I able to set the temperature? I see the probe is capable of -40 _F but I’m curious how low the unit can go. Is it fully adjustable on the App? Am i able to plug in my furnace to the heat plug and set the unit to 25_ F and it will turn on and off accordingly?

Hello,  
The probe temperature range of ITC-308WIFI is -40~100°C/-40~212°F, but please note that the probe and wire cannot directly touch the fire.  
The temperature range that the ITC-308WIFI body can withstand is -20~ 60 °C / -4~ 140 °F, and the humidity is 20~85% (No Condensate)  
Please refer to the principle of ITC-308WIFI:

> [@Q&A: How does ITC-308WIFI work?](https://community.inkbird.com/t/q-a-how-does-itc-308wifi-work/151):
>
> ITC-308WIFI has a special temperature mode and a normal temperature mode. The trigger conditions for the special temperature mode are: Enter the setting mode through the SET key then exit. Enter the setting mode through the app then exit. In the special temperature mode, ITC-308WIFI will ignore the settings of HD (Heating hysteresis temperature) and CD (Cooling back temperature) and turn on the heating/cooling output. It will not enter the normal mode until the temperature reaches the SV tar…

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