Overall pick

Mainstays Analog ABS Fridge Thermometer for Freezer Refrigerator Cooler

4 stars out of 213 reviews
(4.0)|
213 ratings

Key item features

  • Easy to Read: The temperature range indicators provide at-a-glance readings for freezer, refrigeration, and danger zones, with a magnified lens for easy viewing.
  • Safe and Non-Toxic: The liquid inside the thermometer is safe and non-toxic, ensuring it is harmless for use around food.
  • NSF Approved: Certified by the National Sanitation Foundation, this thermometer meets all required standards for quality, durability, and cleanliness.
  • Wide Temperature Range: Measures temperatures from -40 to 80°F (-40 to 27°C), suitable for various refrigeration needs.
  • Lightweight Design: Weighing only 0.07 lbs, it is compact and easy to place inside your refrigerator or freezer.
  • Precise Measurement: Ensures food safety by providing crucial temperature readings, with options to attach via suction cups or hang by clips.
  • Ready to Use: Can be used immediately after unpacking, with no additional setup required.
  • Versatile Application: Suitable for traditional refrigerators, freezers, and insulated boxes, with a clear reading scale for accurate temperature monitoring.
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Current price is $9.83
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Customer ratings & reviews

4 out of 5 stars
stars213 ratings109 reviews
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Reviews summary

Pros
  • : Design enables easy navigation and use.
  • : Has a lightweight build, making it easy to place.
  • : Offers a budget-friendly option.
  • : Fits in small spaces for temperature monitoring.
Neutral
  • : Can be firm, but may not hold well on certain surfaces.
  • : Can be clear and easy to read, but struggles with angles or visibility.
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Showing 1-3 of 109 reviews

Feb 9, 2026
Terry
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Works Like I Expected

I have more faith in these old fashioned thermometers than the dial type or digital refrigerator. Those are certainly easier to read, but I've found them to be inaccurate more often than I would like. I wish the safety zone for the optimal temp for keeping refrigerated foods was more pronounced, but there were not many options available in the store the day I needed it. If you are not pressed for time, I recommend looking for one that is a little more clearly marked. I found that this model has a built in "clip" that fits perfectly over the adjustable trays on the back wall of my fridge so I do not have to rely on the suction cups to hold it in place and at a level that is perfect for viewing that red indicator line. I got this to check the accuracy of a new refrigerator before we loaded it up with food. The cost is nothing compared to finding out that your brand spanking new refrigerator is NOT as cold as it should be and you have to throw out food that should have lasted much longer. (I won't even go into the process of getting the faulty fridge replaced!) Sadly, that is a real concern these days with even the "well-known" and more expensive brands that have been around for decades. If you are in the market for a new refrigerator, just take a look at the reviews on any website that sells large home appliances. It doesn't seem to matter how much you pay, there is a 10-20% chance you will get one that will need a repair or replacement. It happened to me, and it happened to a family member who had to return TWO brand new fridges before getting one that worked properly.

Helpful?13VDTYH3PKW12412101166
Nov 2, 2025
Transporter
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Lay it on the shelf!

I read the reviews - The suction cups give way. OK. I lay it on the shelf. As a thermometer, it works perfectly. Large lines and numbers are easy to read.

Helpful?13VDTYH3PKW12412101166
Sep 3, 2025
Moshe
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

This fridge and freezer thermometer works very well. It does need to be mounted properly and stationed and it will last for a very long time. The temperature reading is very accurate. Used this already for multiple years.

Helpful?13VDTYH3PKW12412101166