Need exhaust fan to turn on only when AC does

Hey guys, so I’m throwing this out there to see if there’s anything I can do to solve my problem.

My room is almost complete but I’ve hit a small snag. So I have a Whynter 14k standup ac with dual hoses in the back. One for intake, one for exhaust.

To exhaust the heat from the ac out of my building I had to attach 30ft of insulated ducting to the original AC exhaust duct.
The duct attaches to a one way damper to exit outside.

I’ve also installed an inline duct fan to help pull air out due to the extra 30 ft section I added.

The issue I have now is that I want the inline fan to turn on ONLY when the ac turns on.

Is there anything I can do to make this work how I envisioned it would?

Thanks guys I appreciate any input I can get

Get an Inkbird temperature controller and stick the temp probe in your duct. As soon as the temp rises it will start your fan.

https://www.amazon.com/Inkbird-Temp...y&sprefix=ink+bird,aps,135&sr=8-1-spons&psc=1

Zeez said:

Get an Inkbird temperature controller and stick the temp probe in your duct. As soon as the temp rises it will start your fan.

https://www.amazon.com/Inkbird-Temp...y&sprefix=ink+bird,aps,135&sr=8-1-spons&psc=1

Click to expand...

Good idea

ty

Tis a good idea.. useful things those inkbirds. Just a couple times ive had the relay stay stuck on on them.

I've got 4 of them and a couple their humidistats too. Two are three years old now. All bulletproof.

Just put one in the green house.

Great idea, thanks. Just ordered one