Inkbird Digital Temperature Controller

Inkbird Digital Temperature Controller

In Stock
60 day no hassle return policy. Details

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
Item # FE640
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 1 LBS
Community Q&A

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Browse 5 questions Browse 5 questions and 58 answers
Why did you choose this?
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Edward H on Oct 15, 2020
Old temp controller failed and froze my beer
nicholas r on Aug 26, 2020
Edward H on Oct 15, 2020
For future temperature control of fermentation chamber.
Jason T B on Sep 3, 2020
Old temp controller failed and froze my beer
nicholas r on Aug 26, 2020
online reviews
Charles J on Aug 11, 2020
To use with Electric Bucket Heating Element - 1000 Watt Heat Stick
Eric Pavey on Jul 13, 2020
Analog Kegerator temp control drifts way too far. And for future fermentation use.
Jeffrey V on Jul 4, 2020
more flexible for year-around temp control in garage
Ronald E on Jun 17, 2020
Need a third one
Stuart R on Jun 17, 2020
Good luck with one for keezer. This is for a ferm chamber
Andy Murrin on Jun 16, 2020
Recommended by friend.
John H on Jun 13, 2020
many positive customer review and online recommentation
Joshua N on Jun 11, 2020
I needed one and this is affordable.
Mark on May 29, 2020
Son recommended
Gerald B on May 29, 2020
Control fermentation temperatures
Jeremy L on May 22, 2020
Recommended by Reddit r/homebrew
William E on May 22, 2020
Pete T on May 16, 2020
Temp controller
T on May 12, 2020
Backup in case current one fails
Michael S on May 2, 2020
to control my cooling in a hot climate
casey w on May 2, 2020
For beer
Valued C on May 1, 2020
easy to use
Nhan L on Apr 23, 2020
Good Reviews
Daivd R on Apr 11, 2020
upgrading a fermenter COVID19 project
Henry H on Apr 8, 2020
Seen it in use
Patrick G on Apr 7, 2020
Easy set up
Shane on Mar 11, 2020
for temp control
larry t on Mar 2, 2020
Recommended by someone I know
James J on Feb 20, 2020
A gift
Nancy H on Jan 30, 2020
Carlos A Davila V on Jan 24, 2020
gets the job done
Robert W on Jan 21, 2020
To control the from the above purchase
jonathan l on Dec 31, 2019
Jaime L on Dec 5, 2019
Read many great reviews from multiple site.
Ben c on Dec 2, 2019
Good Reviews
Dave C on Nov 23, 2019
Good Brand reputation and reasonable pricing
Steve S on Nov 8, 2019
Heard it’s simple to operate
Marcus Mayer 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
For future temperature control of fermentation chamber.
Jason T B on Sep 3, 2020
online reviews
Charles J on Aug 11, 2020
Brewing friends, I just purchased the Inkbird ITC-308, and I'm using it to control the temperature of a ~7cf chest freezer. I've heard that excessively cycling a compressor on and off can shorten it's life. Does anyone have recommendations for the "Cooling Differential Value" and "Compressor Delay" that will give "good enough" temperature stability for fermentation, but won't wear-out the compressor too quickly?
Robert Garton on Sep 30, 2019
BEST ANSWER: Rubber band the thermo couple to a plastic bottle filled with water. The bottle changes at a more constant rate than the ambient air.
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.
What is the input voltage range for this device?
Freeman Wells on Aug 7, 2020
BEST ANSWER: 115 volts ac
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
41 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Super Easy Setup, Accurate Temp Control
Installed the InkBird on a 7 cu ft chest freezer and used an older Fermwrap (the better type, with the USA-made Calorique element) on a Fermonster.

Great temp control, set it for +/- 1 degree heating/cooling, taping the sensor to the side of the Fermonster. It's been controlling consistently within the control band. The ability to easily customize the setup is great. Highly recommend this product.
October 4, 2020
1 month ago
If it fits, wear it!
I've wired inkbird temp controls into all of my cooling chambers. They're factory looking, sanitary, and work all the time. I wanted something simple for a small chest freezer that I use for occasional lagering. I picked this because it doesn't beg for custom installation. It's dirt simple, works great, and was up and running within five minutes of opening the package.
July 24, 2020
3 months ago
Works great. Instructions are confusing and pathetic however. I recommend you Utube it to learn how to use it.
Something definitely got lost in the translation from Chinese to English. Thanks to the guys who put stuff up on utube.
June 29, 2020
4 months ago
Amazing product!
Amazing product...I use it in conjunction with my fermentation mat to brew kombucha.. Game Changer for me!!
May 16, 2020
5 months ago
works and easy to use
Used it once so far. Easy to use, instructions are clear. Works great in combination with FermWrap heater
April 19, 2020
6 months ago
Consistency in cold stabilization
I make white wine from generally acidic grapes, so I always need to cold stabilize. I try to use Mother Nature's cold, but it's been difficult getting her to cooperate to my schedule. I now use this to maintain a chest freezer consistently cold enough to stabilize but not so cold as to freeze the wine. It's working perfectly!
February 17, 2020
8 months ago
Not as reliable as other temp controllers
I use my temp controllers on both a small fridge for fermentation a chest freezer for lagering. This unit is easy to use and setup and does an excellent job of controlling temperatures, however, I have had 2 of these units purchased at the same time. The first unit fell from 1 ft and hit the floor and never worked after that. I returned it to MoreBeer and they replaced it. The 2nd unit lasted a little over a year (warranty expired) and then started giving a piercing tone and an Er message.

My previous Ranco lasted over 10 years and my Johnson Controls unit is over 15 years old. With the Inkbird units, you get what you pay for.
January 1, 2020
over 2 years ago
Got mash up to temperature and maintained it. Highly recommend it with the heating panels
October 31, 2019
1 year ago
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 year ago
Works great. Small issues with programming but overall great.
September 5, 2019
1 year ago