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6 Best Freezer Alarm Reviews for 2023

Freezer alarms can be a helpful gadget for saving money on your electricity bills and ensuring your food stays fresh for longer.

Unfortunately, mishaps such as power outages and even an improperly shut freezer door can result in spoiled food. These faults in retail stores such as restaurants or pharmacies can also lead to significant monetary losses.

A reliable refrigerator alarm will help combat these issues, alerting you of temperature changes. This article will review a list of the best freezer alarms and refrigerator thermometers for home or commercial use.

Best Freezer Alarms: Our Top 6 Picks

1. Fisher Scientific Traceable Freezer Thermometer with alarm


The Fisher Scientific Freezer Alarm’s probe is sealed in a glycol solution. When the refrigerator’s door is left open, the probe insulates. This freezer alarm is for fridges storing medicines and vaccines, evident with the given 5ml bottle.

It comes with a digital screen that reads the temperature received by the sensor. The memory monitor keeps a record of minimum and maximum temperature for any time set up by the user manually. The range of the probe is -50 °c to 70 °c (-58 °F to 158 °F).

Fisher Scientific specifically brings products to those in the medical fields or those dealing with chemicals. So, it’s best if you’re a medical facilitator, a chemist, or a chemical shop owner.

It requires 1 AA battery to work, so power consumption is not an issue. The device has three buttons to adjust the minimum and maximum temperature.

It also has a wall bracket attachment, a magnetic strip, and velcro strips for easy installation. The product’s weight is 317.51 g, and the dimensions are 4.25 x 2.75 x 0.75 inches.


  • It is perfect for research companies that deal with chemicals, vaccines, and other medicine-based industries
  • Accurate reading promotes the extensive use of the product
  • Can check A/C thermostat, room temperature, etc

2. CDN TA20 Audio Visual Refrigerator Freezer Alarm


This audiovisual refrigerator freezer alarm comes with audio alarm technology. The audio alarm buzzes when the refrigerator reaches 46 °F and the freezer reaches 15 °F.

It is made up of sturdy ABS plastic material, assuring more extended durability of the product and food safety. It has a 39-inch sensor cable with suction cups and Velcro tabs to ensure its persistence with the outside surface. It comes with a battery and a user manual. 

The LCD visual panel has flashing LED lights for visibility. If the fridge is left open, the green and red lights flash, and the alarm buzzes for 6 seconds every minute until the door is shut. The alert function can be switched on or off as per the user’s choice.

It requires 2 AAA batteries, which are included in the set. The set’s weight is about 75.98 g, and the dimensions are 8 × 4.5 × 0.75 inches.


  • The material used (ABS) is food-friendly
  • The readings are pretty accurate, and the alarm system is reliable
  • It is lightweight

3. Oria Refrigerator Thermometer With Audible Alarm


The Oria freezer alarm comes with a wireless set of two sensors, which accurately measure the refrigerator’s and freezer’s temperature. It has a minimum and maximum temperature display, which updates every 24 hours, but it also has a button that can clear the data and the previously recorded temperatures.

The screen is divided into three parts, Alarm Sensor 1, Alarms Sensor 2, and Alarm Indoor. The maximum and minimum temperature can be set manually by the user. The indoor temperature range is -10 °C to 60 °C (14 °F to 140 °F), and the outdoor temperature range is -40 °C to 60 °C (-40 ℉ to 140 ℉).

The update rate of the 1st sensor is 57 seconds, whereas that of the 2nd one is 67 seconds. It is a battery-run device (2 × AAA). For installation, there is a bracket, hanging hole, and a magnet attached at the back of the device, allowing the device to stand or hang as per the user’s convenience. The product’s weight is about 212.7g, and the dimensions are 4.25 x 2.75 x 0.75 inches.


  • The range of temperature can be manually set and, thus, can be used extensively
  • Pocket friendly and serves the value for money criteria aptly
  • The big screen and the temperature bifurcation shows the minimum and maximum temperature aptly
  • Installation process is easy with the integrated magnets, hanging hole, and the back’s brackets

4. Iapsales Refrigerator Freezer Thermometer Alarm


This thermometer is easy to read with the LCD (5/8-inch numbers). Two-alarm setups are available in this set, maximum and minimum. The alarm will ring when the manually set maximum or minimum temperature is reached.

It is ABS/stainless steel, water-resistant, and non-oxidizing. It uses a standard AAA battery. The set also includes a 58-inch non-oxidizing wire for easy operation.

It has an adjustable button for setting up the Celsius or Fahrenheit temperature. The alarm can be programmed at a 1° increment. The temperature range of this device is -58° to 158°F (-50° to 70°C). The product’s weight is 9.98 grams, and the dimensions are 0.62 x 1.5 x 2.7 inches.


  • Long battery life
  • Good value for money
  • Non-corroding material

5. Brannan Digital Freezer Thermometer with Alarm


The Brannan Digital Freezer Thermometer and Alarm is an ideal thermometer and alarm alert as it has a built-in alarm that buzzes as soon as the temperature drops. It is easy to use for setting the maximum and minimum temperature in a room or a refrigerator. This device also reads both Fahrenheit and Celsius. This product requires a one × AAA battery.

If your fridge door does not shut correctly, it buzzes immediately, producing a loud sound. It comes with a cable with a length of 2m. Brannan assures the quality of the product and, hence, value for money.

The temperature range is -10 °C to 50 °C (internal) and -50°C to 70°C.

It provides a resolution of 0.1 c. The sampling rate is 10 seconds. The accuracy of the device is +/-1 °c. The device’s weight is about 9.07 grams, and the size is 4.2 x 3.2 x 1.4 inches.


  • The temperature reading is easy, and the setting is adjustable 
  • Loud sound indicator

6. Cooyeah Freezer Thermometer and Alarm


The Cooyeah Freezer Alarm has a vibrant blue and red temperature reader with a dial attached to its center. This clock-like device is large enough to provide a quick, clear, and easy read.

This freezer alarm is made from stainless steel; therefore, it’s a waterproof and corrosion-free alarm.

A pack of 4 thermometer alarms is available at a small price. It is apt for use in a freezer and indicates the apt temperature and how much more or less it is than the set parameters. The size of the dial is 2 inches approximately. The device’s dimensions are 11.14 x 4.72 x 2.44 inches, weighing 173 grams.


  • It’s excellent for adjusting the optimum temperature
  • Affordable

Buyer’s Guide for The Best Freezer Alarms

While buying a freezer temperature alarm, various things should be considered, including accuracy, size, temperature range, price, energy consumption, etc. Below we’ve highlighted some of the most important factors for you to consider.

Freezer Alarm Accuracy and Temperature Range

The temperature reader of the alarm must be accurate with no faulty readings. The alarm’s temperature sensor should not be disfigured; otherwise, it can adversely affect the freezer’s temperature. Also, the temperature range should be extensive for using the customer’s given field. The accuracy rate of devices varies from one to another (for example, some freezers have +/-1°c accuracy rate while some fluctuate more).

Freezer Alarm Power Consumption 

The freezer’s alarm should not be too power-consuming. Some alarms require batteries to work these days, so the rate of changing the battery should not be too many. Also, battery-run alarms are factually less power-consuming, which makes your choice of buying one easier.

are Freezer Alarms good Value for Money?

Yes, freezer alarms are good value for money. They can be a valuable gadget for almost anyone, particularly those who suspect that they have a malfunctioning freezer. Plus, most freezer alarms are relatively cheap to purchase anyway.

Are Freezer Alarms Safe?

Yes, freezer alarms are very safe. The material used in making the alarm is entirely non-toxic, food-friendly, and nonchemical reacting (as freezers are used to store medicines and chemicals, too).


Choosing the right freezer alarm can be confusing, considering how many different types and models are available. But, with the given reviews and previews, we hope we’ve given you a better idea of what is available.