# Best product for exhaust fan - differential temperature controoler **URL:** \ **Category:** Questions & Answers\ **Created:** [July 22, 2022, 8:40pm UTC](https://community.inkbird.com/t/best-product-for-exhaust-fan-differential-temperature-controoler/711 "2022-07-22T20:40:13Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![jwrayburn](https://avatars.discourse-cdn.com/v4/letter/j/f1d935/32.png) [@jwrayburn](https://community.inkbird.com/u/jwrayburn)\ **Post date:** [July 22, 2022, 8:40pm UTC](https://community.inkbird.com/t/best-product-for-exhaust-fan-differential-temperature-controoler/711/1 "2022-07-22T20:40:13Z")
I am looking to install an exhaust fan for my garage. I want the fan to come on when the outside temperature is lower than the inside temperature. Once the inside and outside temperatures are equal, the fan should turn off. Ideally, the controller would be WiFi capable, and allow a threshold for temperature differences, e.g. if inside and outside temps are within 2 degrees, do nothing. Is there an InkBird product that fulfills this requirement, or comes close? Other suggestions? ---
**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:** [July 25, 2022, 1:11am UTC](https://community.inkbird.com/t/best-product-for-exhaust-fan-differential-temperature-controoler/711/2 "2022-07-25T01:11:00Z")
Sorry, INKBIRD does not have a product that meets this requirement. ---
**Author:** ![jwrayburn](https://avatars.discourse-cdn.com/v4/letter/j/f1d935/32.png) [@jwrayburn](https://community.inkbird.com/u/jwrayburn)\ **Post date:** [July 25, 2022, 1:33am UTC](https://community.inkbird.com/t/best-product-for-exhaust-fan-differential-temperature-controoler/711/3 "2022-07-25T01:33:56Z")
Thank you for the quick response!