how accurate is the thermometer? I've used one of these types before in my breville and it gave the wrong temperature of the inside of the oven.

The only way to make sure a thermometer is accurate is to calibrate it. This is done by boiling water and using the thermometer to test the water. If the thing reads 121 degrees, it is accurate. If not, then it needs to be calibrated...that is, the dial needs to be rotated in relation to the dial so it reads 212 degrees. From what I see, most dial type oven thermometers are no longer manufactered with a small nut on the back to allow calibration. Find an old one at a yeard sale and you might be able to.

The description says this thermometer is over 6" tall. That sounds rather large, can anyone confirm?

The 6 inch measurement is for the display card it is attached to. This is typical for Amazon descriptions for items of this kind. As stated in other answers, the thermometer itself is 3.5 inches tall

I'm looking at the picture...why is 0c almost lined up with 30f, shouldn't it be 32f, which it has a perfect mark for?

I received two of the refrigerator thermometers on 3/12/22 and 32F is lined up precisely with 0C. Evidently it's been fixed.

Is there Mercury in this thermometer?

No. It has a steel spring inside.

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Rubbermaid FGR80DC Refrigerator Freezer Cooler Fridge Thermometer, Classic Large Mechanical Dial, Chrome

Product ID: 255551779

Details

Age range (description)
Adult
Brand
Rubbermaid
Colour
Chrome
Included components
1 Thermometer
Special features
High Accuracy

🔋Battery-free mechanical design

🌡️Wide temp range 20°-80°F / -6°-30°C

🛡️NSF certified food-safe

¥5234

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Keep your cool with precision—because safe food storage never goes out of style!

BUILT TO LAST - Durable stainless steel body with shatterproof lens ensures reliability in any kitchen environment.
CERTIFIED FOOD SAFETY - NSF certification guarantees compliance with the highest sanitation standards for safe food storage.
EFFORTLESS INSTALLATION - Compact 3.75 x 2.5 x 1.5 inch design hangs or stands anywhere for quick, convenient monitoring.
INSTANT ACCURATE READINGS - Get real-time temperature updates with a precision mechanical dial—no batteries needed.
VERSATILE KITCHEN ESSENTIAL - Perfect for refrigerators, freezers, coolers, and mini-fridges—professional-grade quality for home or commercial use.

The Rubbermaid FGR80DC Refrigerator Freezer Cooler Thermometer features a large, easy-to-read mechanical dial that instantly displays accurate temperatures from 20° to 80°F (-6° to 30°C). Crafted from durable stainless steel with a shatterproof lens, this NSF-certified thermometer is battery-free and designed for both professional and home kitchens. Its versatile design fits refrigerators, freezers, and coolers, ensuring safe food storage with trusted reliability.

Specifications

Additional Features	High Accuracy, Large Display
Age Range Description	Adult
Asin	B005KDEFNK
Best Sellers Rank	#6,595 in Appliances (See Top 100 in Appliances) #107 in Refrigerator Thermometers
Brand Name	Rubbermaid Commercial Products
Color	Chrome
Customer Reviews	4.7 4.7 out of 5 stars (13,069) 4.7 out of 5 stars
Display Type	Analog
Global Trade Identification Number	00077177142901
Included Components	1 Thermometer
Indoor Outdoor Usage	Indoor
Item Length	15.6 Centimeters
Item Type Name	Analog Thermometer
Item Weight	0.1 Pounds
Lowertemperature Range	20 Degrees Fahrenheit
Manufacturer	Rubbermaid Commercial Products
Model	FGR80DC
Model Name	FGR80DC
Outer Material	Stainless Steel
Part Number	FGR80DC
Power Source	Manual
Product Care Instructions	Wipe Clean
Resolution	1080p
Response Time	0.04 Milliseconds
Reusability	Reusable
Specification Met	NSF
Style Name	Contemporary
Unit Count	1.0 Count
Upc	077177142901
Upper Temperature Range	30 Degrees Celsius

Reviews

User

Cold

Metal

29.05.2020

User

Good Quality

Works perfectly in both my freezer and refrigerator. Accurate. Great price, easy to read. Definitely would recommend.

29.09.2026

User

It is working nicely in the full range and compact, elegant device.

Nil

22.02.2022

User

Works well

Appears to be accurate. Its well made. easy to read and easy to find a place to hang or stand it in the regrigerator or freezer. I recommend it.

4.01.2026

User

ممتاز

9.11.2024

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¥5234

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Excellent communication throughout the order process. Product is perfect.

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