Inkbird Digital Temperature Controller

Inkbird Digital Temperature Controller

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The Inkbird dual stage temperature controller is an easy to use and economical controller that is perfect for home brewing. Inkbird controllers allow you to control both heating and cooling, and set independent differentials for each to keep the exact temperature you need.

The Ink bird ITC-308S controller performs many of the same functions as the Ranco or Johnson but at a more affordable price, making it a great alternative for temperature control.  Aside from brewing uses, this is a great dual relay output temperature controller for cooking (use in a smoker or bbq), home growing (heat mats for seedlings, climate control), or any other DIY project you come up with!


  • Simple plug and play design with user friendly LED interface
  • Dual stage ITC-308 - control both heating and cooling
  • Adjustable Heating/Cooling differential
  • 1000W max power
  • Celsius or Fahrenheit
  • High and low temperature and sensor fault alarms
  • Can control temperatures of -58° F through 210° F (-50° C - 99° C)
  • Body Dimensions: 5.5 in x 2.7 in x 1.3 in
California Recipients: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Item # FE640
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 1LBS
Community Q&A

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Browse 3 questions Browse 3 questions and 56 answers
Why did you choose this?
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Heard it’s simple to operate
Marcus M on Oct 17, 2019
I already have one and love it. Need a second one.
Charles Stahl on Oct 3, 2019
Heard it’s simple to operate
Marcus M on Oct 17, 2019
have control over fermentation temp
Blake Smith on Oct 14, 2019
I already have one and love it. Need a second one.
Charles Stahl on Oct 3, 2019
To use with the FermWrap heater
Kevin Dyson on Oct 2, 2019
I like that it controls heat and cold. And the price is right
Michael B on Sep 24, 2019
Fermenter fridge!
Corey A on Sep 16, 2019
Run a chest freezer as a keezer
Greg M G on Aug 28, 2019
Looks to be a good controller for my chest freezer. Not doing anything fancy, just holding fermentation and lagering temperatures.
Nick L on Aug 28, 2019
Based on favorable reviews
Richard H on Aug 28, 2019
Control a fridge for white wine fermentation
H E L on Aug 28, 2019
Using a chest freezer for chilling kegs and fermentation temperature control.
Robert Garton on Jul 22, 2019
like the option to heat and cool simultaneously
Kenneth W on Jul 17, 2019
Deal off the day
Jason Z on Jul 8, 2019
need another one,expanding fermentation
Robert H on Jul 7, 2019
Rafael S on Jun 7, 2019
Good reviews and I'e seen them used on youtube, seem to work well
Natasha G on May 1, 2019
Temp control on standing freezer for fermentation control.
Erik T on Apr 17, 2019
bought new stand-up, frost free freezer. friend who uses this site constantly recommended this product.
Eric R on Apr 15, 2019
turn fridge into fermenter
Phillip W M on Apr 11, 2019
For use w/ "Ball and Keg Temperature Control Loop"
Dylan P on Mar 27, 2019
Dual stage and cheaper than the ranco ones
Emerson K on Mar 18, 2019
need temp controller
Greg M on Mar 16, 2019
Extra for my lagering fridge
Dominick V on Mar 1, 2019
Need a third Inkbird for another fermentor
Richard D on Feb 26, 2019
Dennis S on Feb 25, 2019
simple set up and great price
lee w on Feb 23, 2019
It got a lot positive recommendations and is relatively inexpensive
Russ R on Feb 14, 2019
Control temperature inside a hollowed out minifridge for indoor lagering
Mitch S on Feb 7, 2019
for use with a used mini fridge i recently purchased
David S on Feb 2, 2019
Purchased so I will be able to control the temp of my freezer to 50 degrees to brew lagers.
APRIL N on Jan 18, 2019
budget friendly and looks like a quality product to get the job done.
Michael N on Dec 29, 2018
to control my heater
Jonathan B on Dec 27, 2018
Travis S on Dec 24, 2018
Great reviews and decent price.
Michael Meadows on Dec 13, 2018
My son-in-law wants it for Christmas
Virginia S on Dec 1, 2018
wanted simple easy to use controler
rocke f on Nov 28, 2018
Christmas present for son, chosen by him.
Marilyn S on Nov 27, 2018
I need it. I have an outdoor shed for my beer making but the temp differentials are huge.
Michael D. M on Nov 24, 2018
The dual stage control and plug and play ease.
Mukunda-Krishna T on Nov 17, 2018
Simple, effective, well rated
Mel I on Nov 17, 2018
Wanted temperature control of fermentation
Harry A on Nov 17, 2018
fits my needs
Kevin L on Nov 17, 2018
Better quality control
Gary Amado on Nov 17, 2018
Good value.Reliable
sean r on Nov 17, 2018
Ron B on Oct 17, 2018
Building a keezer, need for temp control
Rich on Oct 11, 2018
Building a fermentation chamber.
David F on Sep 28, 2018
Control kegerator and fermentation temperature
Kenneth C on Sep 24, 2018
Fernando A on Sep 22, 2018
control temp on sparge wayer
harry p on Sep 17, 2018
have control over fermentation temp
Blake Smith on Oct 14, 2019
To use with the FermWrap heater
Kevin Dyson on Oct 2, 2019
How does this work on a Kezzer?
Donald Palmer on Feb 21, 2019
BEST ANSWER: Very simple. You plug the keezer into the Inkbird controller, then plug the Inkbird into the wall outlet. the allows a freezer to cycle on and off in order to maintain warmer temps than a standard freezer can do on it's own. We use this controller on a mini fridge we converted into a fermenting chamber as well as a huge 14 tap keezer we built. keep perfect temps.
Our controller wont hold settings. It keeps going back to defaults. Very frustrating. Any thoughts ?
wilco landzaat on Mar 23, 2019
BEST ANSWER: You probably aren't holding the "set" button down long enough after setting your preferred temp. Here's the relevant note from the user docs...
" SET key: press SET key for 3 seconds to enter menu for function setting. During the setting process, press SET key for 3 seconds to quit and save setting change." This has worked for me. If you release the button too early, it reverts to the previously stored setting.

4.9 / 5.0
33 Reviews
5 Stars
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1 Star
Just what I needed
I have an old refrigerator I wanted to use for white wine fermentation, but I could not get the fridge thermostat to go warm enough. I was turning the fridge off and on to keep it at temperature. But this solved the problem for me. It kept the wine a the perfect temp throughout the fermentation process. The system is flexible and easy to use, although the interface is not intuitively obvious and it took a few tries to get it programmed correctly. But once I understood the process, it was easy.
September 12, 2019
1 month ago
Works great. Small issues with programming but overall great.
September 5, 2019
2 months ago
Works great
Has been working for a few years with no problems. I use it with a freezer and a heater to control my fermentation.
July 7, 2019
1 year ago
Works great! Easy to install, set up and use!
Frosty man, frosty!
User submitted image
Laggering/serving fridge.
July 6, 2019
4 months ago
Inkbird Temperature Controller
I use this to maintain my fermentation temperature at a constant. I have not used the cooling function but the heating control works great. I use it with a simple heat belt around the fermenter which is then covered with a lightweight jacket for insulation. My shop stays at about 60 F and I can slowly raise the fermentation temperature to push my yeast into action.
May 23, 2019
1 year ago
A real labor saver & ferment perfecter
Highly recommended for the price. Relieves the brewer from constant monitoring during fermentation.
May 11, 2019
11 months ago
Exactly as advertised, great price
I used this to convert an old refrigerator into a fermentation chamber. It was easy to set up and has been working great. I saw the same exact item at my local homebrew store for twice the price.
April 26, 2019
6 months ago
Great temperature control for the price
This is my 3rd InkBird Temp Controller. I have one controlling my 5 Cu ft keezer (fermenter) with a FermWrap heater and one for my 7 Cu ft. keezer (kegerator). I'm working on converting a wine cooler to a one tap kegerator/fermenter and will use this for temp control. This controller keeps the keezers within 1 F.
March 20, 2019
7 months ago
I would buy again
I t is easy to setup and use works great for maintaining the temperature of my carboy
March 7, 2019
8 months ago
Works great, less money.
I've used it for 1 batch and it worked great.
February 5, 2019
9 months ago