DetailsThe first dual-mode digital temperature controller to go from -50°F to 300°F—and back again—with the flip of a switch. Forget the Ready, its low-profile, ultra-mountable design is Set and Go. With a responsive dual-color LED display and modular probe that eliminates the need for a thermowell, perfect homebrew has never been so effortless.
No longer is an advanced degree in electrical engineering required to achieve flexibility in fermentation temperature control. ThermoStar® is the only temperature controller that you'll never need to disassemble or re-wire for perfect performance. With ThermoStar®, switching from heating to cooling is not only easier than ever with the simple push of a button, it is instantly recognizable with an LED screen that displays the target temperature in blue when the unit is in cooling mode and red when it is in heating mode.
A low-profile design outfitted with multiple mounting options—everything from magnetic to suction to nail hooks—ThermoStar® delivers superb, reliable control even in the smallest of fermentation spaces.
Upgrade the modular stainless steel probe to our longer 12” model and monitor the actual internal fermentation temperature of your wort without the need for a thermowell.
- Details & Instructions
4.4 / 5.021 Reviewsget the probeget the probe and you should have no problem.
the ambient temperature will fluctuate in an empty freezer.
the probe was worth the investment and the thermostar works great with it.
i give it 5 starsJuly 1, 2018Purchased
10 months agoBetter Brew thought controlled temperaturesI can control the temp of my Brew...I AM GOD HERE!!! Just don't my wife. I love this thing. The time of the year use to determine what I made but not any more.May 10, 2018Purchased
1 year agoWorks just how I would want it. Would highly recommend for those that want to brew year round and have cooler homes not suitable for proper yeast fermentation temps.March 20, 2018Purchased
over 2 years agoIt's doing real good no problems right out of the box.February 15, 2018Purchased
1 year agokeezer temp controlsimple to use, plug in, set temp and go. just wish the temp setting wasn't so slow.works great. keeps my keezer within a few degrees with the aid of a fan.January 18, 2018Purchased
1 year agoLike it.Just got my Thermo Star Two-Way Digital Temperature Controller hooked up. Out of the other controllers I have its the best and most easy to use.December 13, 2017Purchased
1 year agoFermentation - simplifiedI purchased this when my basement became too warm to do fermentations during the summer. This kept my fermentation temps in check and the batch turned out great because of it!July 6, 2017Purchased
1 year agoPoor qualityThis worked fine for about a year. Then one day the display started flashing and would not function. Shortly thereafter, it wouldn't come on at all. Completely dead. I emailed for advise, but apparently nothing could be done... Gonna give the MKII a try, it seems to get pretty good reviews.May 30, 2017Working fineThis unit seems to be working fine after 1 months use. Easy to install and adjust. It appears to hold temp on a converted chest freezer to +/- 3 degrees or so. Easy to install, but the magnetic backing is not very strong. It doesn't hold the unit to the side of the freezer and after an hour or so it slowly slides to the bottom. The was fixed by placing a piece if double sided tape on it.May 24, 2017Purchased
over 2 years ago
- Customer Q&A
Browse 8 questions Browse 8 questions and 24 answersWhat has been used with the ThermoStar Digital Unit for chilling?ThermoStar® Two-Way Digital Temperature ControllerBEST ANSWER: I use the 12" sensor through the airlock hole on top of both a 6 gallon bucket and a wide mouth carboy. Alternativley you can tape the shorter sensor that comes with the unit to the side of the bucket or carboy and that works well also.What has been used with the ThermoStar Digital Unit for chilling?ThermoStar® Two-Way Digital Temperature ControllerBEST ANSWER: I have a 5 cubic foot deep freeze that I use for a fermentation chamber. I set the freezer's dial at the lowest setting and plug it in to the thermostar as per the directions. I have a drilled stopper with two holes. One for a airlock/blow off tube, the other I slide the 12" probe into. This allows the thermostar to turn the freezer on and off as needed to keep the brew at the correct temperature I set. It's better to use the temp of the wort vs the ambient temp because they can vary by quite a few degrees as fermentation takes place. The simple plug in style of the 12" probe is a no brainier for sure and I was able to easily maintain my temp within a degree or so even in my garage in the middle of summer in 29 palms California.does this unit automatically control the temp between heating and cooling or every time i want to cool i have to switch it to cooling and vice versa? In other words i want to set it and forget it without toggling switchesBEST ANSWER: You have to switch it. Think about it though, if it was automatic you would have to have a heating pad inside your refrigerator for it to work. The ambient temperature that you are trying to rise above or below will bring it back to the temp you set it at ... Unless you live is some alternate universe!My Thermostar Controller is flashing temperatures between ambient and zero. It does not matter which setting (cool, off, heat) is selected the controller appears to work for about 10 minutes before the fluctuating reading startup. Has anyone seen this problem? My unit is 15 months old and never given me issues before. Thank you.BEST ANSWER: I've not had this issue, but it almost sounds like when the unit is warmed up (powered on for 10+ minutes) that's when the issues start. I suggest making sure that the connections are clean to power cord and between the sensor cord and the control unit. Other than that I suggest contacting the manufacturer regarding the issue. Good Luck.Would this work on an electric smoker?BEST ANSWER: It really depends on what type of electric smoker you have. This control module turns the power on and off to whatever accessory is plugged into it, according to the temperature needs. So, if your smoker runs on continuous power and doesn't need to be programmed every time that it powers off, I would think you would be good to go. Just make sure the module's upper limits will work with whatever temp you like to smoke at too.My Thermostar won't turn off the freezer. It reads the temperature accurately enough but the switch never turns off. So I end up with a lot of frozen wort. Since it's reading the temperature correctly I don't think replacing the probe would help. Is there anything I can do to fix this unit or is it a paper weight now?BEST ANSWER: Hello!
I'm sorry to hear about the problems with the Thermostar. This may be best to reach out to our Customer Service team to help with. Our phone number is 888-449-2739 or feel free to email us at email@example.com.To follow up to the answer of Rob's question, will this work in a 6 gallon carboy if I get a solid stopper and drill it to the proper size to insert the probe and wire?BEST ANSWER: Yes, that would be fine to do, as long as only the probe is in the liquid. The long probe is of course best for this use. -Mike W, Midwest SuppliesCan I order the original temp probe it comes with?BEST ANSWER: Unfortunately, we do not sell the standard probes by themselves
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