The 7 Best Fridge Thermometers in 2023

Monitor one of the most important appliances in your home

We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation. Learn more.

Best Fridge Thermometers

The Spruce Eats / Lecia Landis

It’s important to keep your food at an optimal temperature—typically at or below 40 degrees Fahrenheit—to ensure food stays fresh and free from bacteria. And while many refrigerators do have built-in thermometers, experts suggest using an external one, too. “It’s advised to keep a thermometer in all refrigerators and freezers, placing it on the shelf at eye level right in the front,” says Ron Shimek, ​​president of Mr. Appliance, a Neighborly company. “This way every time the appliance is opened, you can quickly glance at the temperature and know everything is alright.” When looking for a fridge thermometer, take into account how it attaches (magnetic, hanging, clip, or standing), the display type, and whether or not it's waterproof.

These are the best fridge thermometers for the job.

Best Overall

ThermoWorks Fridge/Freezer Thermometer

Fridge/Freezer Thermometer (RT8100)


What We Like
  • Two sensors can be used simultaneously

  • Audible alarms

  • Magnetic attachment

  • Easy-to-read display

What We Don't Like
  • Relatively expensive

  • Larger than some other models

Why we chose it: This highly-rated thermometer pulls double duty, since it has two probes that can be used to measure accurate temperatures on an easy-to-read LCD display in both the refrigerator and freezer.

We love that this fridge thermometer covers all of the bases—because it has two channels and two probes, it can be used simultaneously in both the refrigerator and the freezer. Simply insert one probe in the freezer and one in the fridge. You can also set high and low temperature limits so that the audible alarm will alert you to any changes—you don’t have to keep taking manual readings.

The thermometer also includes a convenient fold-out stand and magnetic rear-panel clips, so it’ll stay put wherever you place it. Plus, it has a very easy-to-read LCD display to ensure you get the temperature readings just right.

Price at time of publish: $32

Dimensions: 5.3 x 1.77 x 0.9 inches | Range: -40 to 158 degrees Fahrenheit | Power Source: AAA batteries | What's Included: (2) AAA batteries, (2) suction cups

Best Budget

Rubbermaid Refrigerator/Freezer Thermometer

Rubbermaid Thermometer, Classic Large Mechanical Dial, Chrome, Extreme Temperature Range for use in Refrigerator/Freezer/Cooler/Fridge


What We Like
  • Doesn’t require batteries

  • Exceptionally durable

What We Don't Like
  • Narrower temperature range

This fridge thermometer is proof that you don’t have to spend big bucks to get a reliable temperature gauge for your appliance. Sure, you won’t get extras like an LCD display or magnet to hold it in place, but you’ll get exactly what you need: an accurate thermometer. 

The small stainless steel thermometer reads between negative 20 and 80 degrees Fahrenheit—perfect for the vast majority of traditional refrigerators, mini-fridges, freezers, and even coolers (great to ensure your barbecue fare stays within a safe range). It also has a shatter-proof screen, so you won’t have to worry if it does accidentally tip over.

And as a big bonus, this model doesn’t require any batteries, so there will never be a lapse in readings.

Price at time of publish: $12.49

Dimensions: 1 x 1 x 0.03 inches | Range: -20 to 80 degrees Fahrenheit | Power Source: Mechanical thermometer

Best Easy to Read

VOULOIR Fridge Thermometer

Waterproof Refrigerator Fridge Thermometer, Digital Freezer Room Thermometer, Max/Min Record Function Large LCD Screen and Magnetic Back for Kitchen, Home, Restaurants (1 Pack)


What We Like
  • Wide temperature range

  • Simple to operate

  • Affordable

What We Don't Like
  • Requires batteries

Why We Chose It: This thermometer has a large, easy-to-read display and intuitive controls—all for a budget-friendly price.

The standout feature on this fridge thermometer is the 2.56-inch electronic LCD display that’s a cinch to read, even from a distance. And that’s not all the screen will tell you—the information on the screen simultaneously displays the maximum and minimum temperatures of the day as well as the current temperature (the bigger number). 

It’s easy to operate and toggle between modes, too. The thermometer has just three buttons (all on the back), so all you have to do is press on, off, or the button that shifts the mode from Celcius to Fahrenheit. Still, the unit has a wide temperature range that makes it perfectly suitable for both the fridge and the freezer—the temperature spans from negative 4 to 122 degrees Fahrenheit.

Price at time of publish: $8.99

Dimensions: 3.3 x 2.5 x 1 inches | Range: -4 to 122 degrees Fahrenheit | Power Source: LR44 battery | What's Included: (1) LR44 battery

Best Multipurpose

AMIR Wireless Refrigerator Thermometer

(New Version) AMIR Refrigerator Thermometer, Wireless Indoor Outdoor Thermometer, Sensor Temperature Monitor with Audible Alarm Temperature Gauge for Freezer Kitchen Home (Battery not Included)


What We Like
  • Wireless sensors

  • Easy-to-read display

  • Both visual and audible alarms

What We Don't Like
  • Requires batteries

Why We Chose It: This smart thermometer works off of sensors you can use in both the fridge and freezer, then delivers the temperature on an easy-to-read LCD screen.

This thermometer (which is a new-and-improved version) has two sensors that allow you to monitor both the refrigerator and the freezer wirelessly at the same time. Simply stick the sensors where you want them (you can hang them, too!), and keep an eye on the temperature via the separate—and very large and easy to read—LCD display. The display unit can stand wherever you want it to, whether that’s on the table, tucked on a shelf, hung on the wall, or with a magnet on the refrigerator.

The display itself records minimum and maximum temperatures, historical temperature readings, and the current temperature. If anything’s amiss, both visual and audible alarms will alert you right away to minimize the chance of food spoilage.

But one of the best things about this thermometer is that you can use it outside of the kitchen, too. Use it to monitor the temperature of any space—like a baby’s nursery or the garage. 

Price at time of publish: $20.99

Dimensions: 3.1 x 3.7 inches (main unit) | Range: 14 to 140 degrees Fahrenheit | Power Source: AAA batteries | What's Included: (1) main unit, (2) transmitters, (1) user manual

Best Magnetic

Taylor Pro Series Digital Fridge/Freezer Thermometer

Taylor 1445 Taylor 1445 Pro Series Digital Fridge-Freezer Thermometer with Safety Zone


What We Like
  • Multiple ways to install

  • Easy-to-read display

What We Don't Like
  • No audible alarm

Why We Chose It: The magnetic design ensures that this thermometer, which has a large digital display, is always in sight.

There’s a lot to love about a magnetic fridge thermometer: There’s no concern that your unit is going to tip over, making it harder to read. Plus, when you’re able to stick the unit onto the wall of your fridge, you conserve precious space. We love that this round device has that precious magnet, but also has a clip and a stand should you want to stash the device in one of the more traditional ways. 

No matter which way you choose to set up the thermometer, you’ll love how easy the display is to read. The temperature reading—a large digital number—is perfectly centered on the screen. But just in case there’s any confusion (maybe you don’t know exactly how cold the fridge or freezer should be), the device also displays a happy or sad face to indicate whether the temperature is in a safe zone or not.

Price at time of publish: $12.72

Dimensions: 2.75 x 2.75 inches | Range: -40 to 176 degrees Fahrenheit | Power Source: Cr2032 battery | What's Included: (1) Cr2032 battery

Best Set

AcuRite Refrigerator Thermometer

AcuRite Digital Wireless Fridge and Freezer Thermometer with Alarm and Max/Min Temperature for Home , Restaurants (00986M), 0.6, White


What We Like
  • Wireless sensors

  • Magnetic attachment

  • Easy-to-read display

  • Programmable alarms

What We Don't Like
  • Expensive

Why We Chose It: This thermometer comes with two sensors—one for the fridge and one for the freezer—plus has an alarm, so you’ll know if the temperature on either goes out of range.

If you have multiple appliances to monitor, try this refrigerator thermometer, which includes two sensors—one for the refrigerator and one for the freezer. The sensors are wireless, so all you need to do is place them inside the unit. You can put the standalone display anywhere you can easily spot it—on the counter or a shelf, perhaps—but it’s magnetic and has a keyhole for hanging, so you could also mount it straight onto the refrigerator or the wall. 

The display is relatively large, too, so you can spot it from afar. Additionally, you can program alarms easily so that you’ll be notified when the temperature exceeds your desired maximum, reducing the chance that food spoils.

Price at time of publish: $38.32

Dimensions: 1 x 5.8 x 2.4 inches (main unit) | Range: -40 to 100 degrees Fahrenheit | Power Source: AAA batteries | What's Included: (1) main unit, (2) wireless sensors, (1) user manual

Best Compact

ThermoWorks ThermoDrop Zipper-Pull Thermometer

ThermoDrop™ Zipper-Pull Thermometer


What We Like
  • Backlit display

  • Durable and waterproof

What We Don't Like
  • Can only be hung

Why We Chose It: This water-resistant thermometer is ultra-compact, saving precious space, but still has a large and easy-to-read display.

When space is really at a premium—maybe you’re monitoring the temperature of a mini-fridge or a cooler, or maybe you just have a very packed refrigerator—this is the thermometer for you. It’s just as accurate as our overall pick, but it’s a fraction of the size. In fact, it’s so small you can wrap your whole hand around it. 

But despite its size, this thermometer provides just as much information as others. The auto-rotating display reads the current temperature, as well as minimum and maximum. And the big digits mean it's incredibly easy to read the temperature from any angle.

The thermometer also has another very important added feature. It has an IP67 rating, meaning it’s water-resistant, plus it's strong enough to withstand dust and drops (great for campers!). There are several color options to choose from, too.

Price at time of publish: $22

Dimensions: 49 x 33 x 12.5 millimeters | Range: -13 to 122 degrees Fahrenheit | Power Source: CR2025 battery | What's Included: (1) CR2025 battery, (1) split key ring

Final Verdict

The best overall fridge thermometer is the ThermoWorks Fridge/Freezer Thermometer because it’s a reliable and versatile option. The magnetic thermometer is highly accurate and can be used in both sections of your appliance—or even in a deep freezer. For a budget-friendly option, opt for the Rubbermaid Refrigerator/Freezer Thermometer.

What to Look for in a Fridge Thermometer


Standalone thermometers may tip over, making it harder to read the thermometer. Look for options that are magnetic or feature hooks or clips. Some options feature multiple attachment options and are thus more versatile.


Fridge thermometers come with analog and digital displays. For easy readings, look for a thermometer that has a large digital display. Some thermometers offer LED displays or are backlit for easier reading.


For longevity, select a model that specifically states that it's waterproof. Similarly, an anti-fog display is another nice feature to have. Waterproof options are also ideal for outdoor coolers and camping, so consider how versatile you need this thermometer to be.


How do you use a refrigerator thermometer?

To use a refrigerator thermometer properly, place it inside the fridge. If you want to monitor a particular area of the appliance more closely, like the meat drawer, place your thermometer as close to it as possible. Then, close the door and let it sit for a few hours before checking the temperature for the first time. For the most accurate picture of the true temperature, take your reading first thing in the morning, since the appliance’s door will have been closed for hours at a time. (Frequent opening and closing the door can skew the temperature.) 

How cold should you keep your refrigerator and freezer? 

According to the FDA, you should keep the refrigerator temperature at—or below—40 degrees Fahrenheit. The freezer temperature should be 0 degrees. 

Where’s the best place to put a refrigerator thermometer? 

The best place to put a refrigerator thermometer is near the door, which is typically the warmest area of the fridge. But you can also target specific areas (like the meat drawer) by putting the thermometer there.

How long does it take for a refrigerator thermometer to work? 

Though your refrigerator thermometer will begin to read temperature immediately, it’s best to wait a few hours before taking a read. For the greatest accuracy, read the thermometer first thing in the morning when the door has been closed for more than a couple of hours at a time.

How We Researched

To curate this list, we scoured top retailers to find the top-selling, top-rated refrigerator thermometers. Then, we interviewed experts like Ron Shimek, president of Mr. Appliance, a Neighborly company, to find out what types of thermometers are most accurate, plus learn more about what features are most important. With this information, we vetted each product being considered to ensure the final list of refrigerator thermometers contained only the most reliable, quality options on the market today.

Why Trust The Spruce Eats?

This article was written by Brigitt Earley, a freelance writer who has spent the last 10-plus years researching the best home goods and kitchen items for various digital publications, including The Spruce and Good Housekeeping. Brigitt also has a degree in culinary arts from The French Culinary Institute.


Continue to 5 of 7 below.