Digital Stick on Thermometer
Digital Stick-On Thermometer
What Is This Product?
The KegLand Digital Stick-On Thermometer is a simple, no-fuss temperature monitoring strip designed to give you an at-a-glance temperature reading directly from the surface of your fermenter, keg, or vessel. Peel, stick, and you're done — there's no probes, no cables, and no guesswork. With a wide measurement range of -50°C to 70°C and a clear digital display, it covers every temperature you'll encounter across brewing, fermenting, distilling, and beverage storage. For under two dollars, it's one of the most practical little additions you can make to your home setup.
Key Specifications
Temperature Range: -50°C to 70°C Display: Clear digital LCD readout Mounting: Adhesive-backed strip — sticks directly to vessel surface Compatible With: Fermenters, kegs, carboys, demijohns, storage fridges, aquariums, and more Brand: KegLand
How Does It Work?
The thermometer uses liquid crystal technology embedded in a flexible adhesive strip. As the surface temperature of whatever it's stuck to changes, the crystals shift colour and display the corresponding temperature reading. The number that appears most clearly and brightly is your current reading. It responds to changes within a few minutes, making it ideal for passive monitoring rather than instant spot checks. For best accuracy, apply the strip to a clean, dry surface away from direct sunlight or heat sources that could skew the reading.
Where Can I Use It?
This thermometer earns its place in every part of the home brewery or distillery. The most common uses include sticking one to the side of your fermenter to monitor fermentation temperature without opening the vessel — critical for keeping ale yeasts in their happy range of around 18–22°C, or lager yeasts down around 10–14°C. It's equally useful on a keg in the fridge to confirm serving temperature, on a demijohn during wine fermentation, or on a spirit wash vessel during the early stages of a ferment. Beyond brewing, it works well on aquariums, propagation trays, brew fridges, and any other container where surface temperature matters.
Why Does Fermentation Temperature Matter?
Temperature is one of the single biggest variables in homebrew quality, and it's one of the most overlooked. Fermentation that runs too hot produces fusel alcohols — harsh, hot-tasting compounds that give homebrew its reputation for harshness. Too cold, and fermentation stalls or produces off-flavours from stressed yeast. Having a thermometer permanently stuck to your fermenter means you can catch temperature swings before they become a problem, without disturbing the vessel. For distillers, monitoring wash temperature during fermentation is equally important — a well-managed ferment produces a cleaner wash, which translates directly into a cleaner, better-tasting spirit.
How to Apply It?
- Clean and thoroughly dry the surface where you want to apply the thermometer — any moisture or grease will prevent the adhesive from bonding properly.
- Peel the backing from the adhesive strip.
- Press firmly onto the outside of your fermenter, keg, or vessel at a height that makes it easy to read at a glance.
- Allow a few minutes for the thermometer to equilibrate to the vessel's surface temperature before taking your first reading.
- The brightest, most clearly displayed number is your current temperature.
That's all there is to it. One strip, permanently in place, giving you a continuous passive temperature reading for the entire fermentation or storage period.
Pro Tip: For the most accurate reading on plastic fermenters, apply the strip lower on the vessel where it contacts the liquid rather than the headspace — liquid temperature and air temperature inside a fermenter can differ by several degrees, and it's the liquid temperature that matters for your yeast. On glass vessels, any position mid-vessel works well.
