The Best Wireless Freezer Alarms for Freezer Monitoring 2022

Last Updated on February 23, 2022 by CHANDRAMANI

Freezer Alarms are necessary gadgets for freezer temperature monitoring. You can prevent food spoilage if you have an alarm in your freezer as it reminds you of the unfavorable temperatures in your freezer.

According to U.S. Food and Drug Administration, freezer temperature should be 0° F (-18° C). Freezer alarms and freezer thermometers are the best way of monitoring your freezer temperature.

Freezer alarms are inexpensive and small gadgets that can help you prevent food spoilage and ultimately save your money. Therefore they are necessary accessories for your freezer and refrigerator.

Product NameHighlightsCheck Price/BUY
1. CDN TA20 Audio Visual Refrigerator Freezer Alarm White, 8″#Audio/visual alert
#shatterproof ABS plastic
#Dual progress display
#Food-safe ABS plastic
#Sliding mode switches
2. AcuRite 00515M Refrigerator Thermometer with 2 Wireless Temperature Sensors & Customizable Alarms for Fridge & Freezer#Easy-to-read display
#Customizable temperature alarms
#Two wireless thermometer for freezer & refrigerator
#magnetic backing for freezer mount
3. FRIDGGI – Freezer Door Alarm#Gentle alarms
#Four Modes
#Continous alarm
#Repeated siren
4. Digital Refrigerator Thermometer – Fridge and Freezer Alarm#Digital Display
#Easy to use
5. Fridge Freezer Thermometer Max/Min Memory LXSZRPH High & Low-Temperature Alarms#LED Indicator
#Large LCD Display
#Compact & Practical

1. CDN TA20 Audio Visual Refrigerator Freezer Alarm White, 8″

This is the best freezer alarm which can measure temperatures between -58° to +158°F/-50° to +70°C and Signal sounds at 15° or 46°F/-9.5° or 8°C.

It is made up of shatterproof material and Food-safe ABS plastic which make it safe for keeping between stored food in the freezer.

There is audio signal and visual LCD panel with flashing LED lights for unfavourable temperatures in your freezer. The freezer alarm activates when the internal temperature is above 15°F, red and green lights flash and the alarm sounds for six seconds each minute until it is manually turned off.

It can be used in a freezer or in a refrigerator. It has switchable modes for both. The Audio alarm activates when refrigerator reaches 46 degrees F or freezer reaches 15 degrees F.


  • Manufacturer: CDN
  • Product Dimensions: 8 x 4.5 x 0.75 inches
  • Item Weight: 2.68 ounces
  • Measurement Range: -58° to +158°F/-50° to +70°C
  • Signal sounds at 15° or 46°F/-9.5° or 8°C

2. AcuRite 00515M Refrigerator Thermometer with 2 Wireless Temperature Sensors & Customizable Alarms for Fridge & Freezer

This is an alarm with two wireless sensors, one for freezer and another for refrigerator.

It has magnetic backing for fridge mount, keyhole for mounting on wall, and a fold-out stand for countertop placement.

The large screen displays the temperature from each sensor and displays the high and low. The alarm notifies you audibly and visually when temperatures exceed your set minimum or maximum range.

Each sensor is powered by 2 AA alkaline or lithium batteries which are not included while the display is powered by 3 AA batteries.


  • Manufacturer: AcuRite
  • Product Dimensions: 8.27 x 7.84 x 2.64 inches
  • Item Weight: 13.1 ounces
  • Measurement Range: -40°F to 99°F -40°C to 70°C
  • Wireless Range: 75 ft / 23 m
  • Power: Display: 3 x AA alkaline batteries Refrigerator and Freezer Sensors: 4 x AA alkaline or lithium batteries

3. FRIDGGI – Freezer Door Alarm

If you want a basic alarm which can remind you when the door is left open, then this is a perfect option.

It reminds you after 1 minute (for 2 seconds), a second alarm after 2 minutes (for 4 seconds) when the fridge door is still open or ajar.

In the loud mode it has an additional 110db Siren every 4 minutes (stay 20 seconds), activate using SET Button (4 beeps confirmation).

It has four modes Quiet (80dB), Medium (85dB), Normal (90dB with a beep every 10s), Loud (95dB, with a beep every 10s, and a 110db Siren every 4 minutes).

You can change the mode using the SET button and wait for confirmation. Quiet (one beep), Medium (two beeps), Normal (3 beeps), and Loud (4 beeps).


  • Manufacturer: Fridggi
  • Product Dimensions: 0.98 x 1.97 x 2.95 inches
  • Item Weight: 1.58 ounces
  • Batteries: 3 LR44 batteries required

4. Digital Refrigerator Thermometer – Fridge and Freezer Alarm

This is another great freezer alarm for reminding you temperature fluctuations in the freezer.

A warning alarm can be set to alert for any major temperature fluctuations. It also records maximun and minimum temperatures.

It measures temperature in C and F. You can change from one temperature unit to another. It is fixed with the magnet attachment or sticky tabs.

This alarm is powered by 1 x AAA battery.


  • Manufacturer: Thermometer World
  • Product Dimensions: 4.33 x 3.54 x 0.98 inches
  • Item Weight: 2.65 Ounces
  • Power Source type: Battery Powered

5. Fridge Freezer Thermometer Max/Min Memory LXSZRPH High & Low-Temperature Alarms

It has large LCD display. It has sensor for measuring temperatures inside the freezer. The dimensions are 2.56″x 0.71″x 2.33″.

The alarm rings when the temperature goves above or below your set range. It also has LED light that flashes for 5 seconds.

It records the maximum and minimum temperatures. The memory stores high and low readings with MIN/MAX button makes it easier for you to check for changes in temperature.

It has three mounting options Standing on a table or attached to the freezer surface(with backside magnet) or attached to any surface with the Velcro which provided.


  • Manufacturer: DACANG
  • Product Dimensions: 6 x 4.9 x 1.1 inches
  • Item Weight: 1.27 ounces
  • Measuring Temperature Range: In(-10℃~+50℃ (+14℉ ~ +122℉); out(-50℃~+70℃ (-58℉ ~ +158℉)
  • Power supply: 1.5V (LR44) x1 (Included)
  • Size: 65*60*18mm(2.5*2.3*0.7inch)


CDN TA20 Audio Visual Refrigerator Freezer Alarm White, 8″ is the best freezer alarm. It has Audio/visual alert, made from shatterproof ABS plastic, has Dual progress display, made from Food-safe ABS plastic and has Sliding mode switches.

However if you want a larger display then AcuRite 00515M is a great option.

Read Next: Best Chest Freezer for Fermentation

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