# Dual set point on 308

**URL:** <https://community.inkbird.com/t/dual-set-point-on-308/167121>\
**Category:** Questions & Answers\
**Tags:** smart-controller\
**Created:** [April 23, 2026, 3:17pm UTC](https://community.inkbird.com/t/dual-set-point-on-308/167121 "2026-04-23T15:17:27Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Stackr](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@Stackr](https://community.inkbird.com/u/Stackr)\
**Post date:** [April 23, 2026, 3:17pm UTC](https://community.inkbird.com/t/dual-set-point-on-308/167121/1 "2026-04-23T15:17:27Z")

</div>

I recently purchased a 308wifi to control a seasonal green house. I really like the controller but feel I’m either missing something, or maybe the software is. I’d like to be able to establish a low temp set point (turn heat on) and a high temp set point (turn exhaust fan on). I’d like to be able to do this but at the same time have each set point only engage the heater or fan to bring the temperature up, or down, by a few degrees and not bring it to the set point itself. For example when it now hits heating it brings the temperature down up to 20 degrees, I’d like it to only bring it up a few degrees above my low. I’m not sure if I I explained that well

I suspect the unit is able to do this through programming if it’s not already able to.

---

<div class="post-metadata">

**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 9, 2026, 4:30am UTC](https://community.inkbird.com/t/dual-set-point-on-308/167121/2 "2026-05-09T04:30:33Z")

</div>

Hello,  
It doesn’t seem to meet your needs 🤔. The ITC-308-WIFI maintains a temperature range through a heater and a cooler, and the shut-off value (target temperature) for heating and cooling is the same. In other words, heating and cooling will only shut off after the target temperature is reached.

Please refer to this post to understand how it works:

> [@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…