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

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 dial

🌡️Wide temp range 20°-80°F / -6°-30°C

🛡️NSF certified food-safe

25154CFA

Duties & taxes included

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Keep it cool, keep it safe — the pro’s choice for perfect food storage!

BUILT TO LAST - Durable stainless steel body with shatterproof lens for long-term reliability in any kitchen.
VERSATILE PLACEMENT - Easily hangs or stands—perfect for refrigerators, freezers, coolers, and mini-fridges.
ECO FRIENDLY HASSLE FREE - Mechanical design requires no batteries, reducing waste and maintenance.
INSTANT ACCURATE READINGS - Get real-time temperature updates to guarantee food safety without delay.
PROFESSIONAL GRADE ASSURANCE - NSF certification means it meets the highest standards for commercial and home use.

The Rubbermaid FGR80DC is a professional-grade, NSF-certified mechanical refrigerator/freezer thermometer featuring a large, easy-to-read dial. It measures temperatures from 20° to 80°F (-6° to 30°C) instantly without batteries, housed in a durable stainless steel frame with a shatterproof lens. Designed for both commercial and home kitchens, it ensures precise food safety monitoring with versatile placement options.

Specifications

ASIN	B005KDEFNK
Additional Features	High Accuracy, Large Display
Age Range Description	Adult
Age range (description)	Adult
Best Sellers Rank	#4,808 in Appliances ( See Top 100 in Appliances ) #77 in Refrigerator Thermometers
Brand	Rubbermaid Commercial Products
Brand Name	Rubbermaid Commercial Products
Color	Chrome
Colour	Chrome
Customer Reviews	4.7 out of 5 stars 13,025 Reviews
Display Type	Analog
Global Trade Identification Number	00077177142901
Included Components	1 Thermometer
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
Outer material	Stainless Steel
Part Number	FGR80DC
Power Source	Manual
Product Care Instructions	Wipe Clean
Resolution	1080p
Response Time	0.04 Milliseconds
Reusability	Reusable
Special features	High Accuracy, Large Display
Specification Met	NSF
Style Name	Contemporary
UPC	077177142901
Unit Count	1.0 Count
Upper Temperature Range	30 Degrees Celsius

Reviews

K**R

Cold

Metal

29.05.2020

J**P

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

Nil

22.02.2022

D**H

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

T**M

I'm happy with it

Works well. I did compare it with 2 other types of thermometers to check accuracy. They were all within 1 degree of each other at room temperature and in the refrigerator. That's good enough for my purpose. It only took a couple minutes at most to change and register the correct temperature when placed in a different area.

25.07.2026

Y**4

ممتاز

9.11.2024

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