Best Freezer Alarm



Hi, I’m Steve, and I’m the founder and chief editor at I'm by no means a trained chef but I enjoy good food, fiddling around in the kitchen, and trying out the latest gadgets. My goal is to create a place where anyone interested in cooking and learning about the kitchen can get easy-to-follow practical advice. If you have any questions please don't hesitate to contact me.
Freezer filled with bags of vergetables.

Did you know that any slight change in the freezer’s temperature can adversely affect the taste of your food? Your freezer’s temperature must always be at 0° F/ -18° C or below to maintain the freshness and the natural flavor of the food, even after a long period. However, this is not always the case with most freezers due to many factors.

When the appliance stops working for one reason or another, or there’s a power outage, the freezer’s temperature rises to unsafe conditions. Human error also makes this possible. In most cases, you may leave the freezer door partially closed, damaging the food and making it unsafe for consumption.

Fortunately, with the best freezer alarm at your disposal, you can save yourself from all these challenges. 

Whenever the temperature rises above the preset levels, your freezer alarm gives you a warning. Therefore, you can adjust it accordingly to keep your frozen food fresh and safe for consumption.

Top 5 Picks

Several freezer alarms dot the market. But which one should you pick?  Here’s a roundup of the five top-rated freezer alarms.  

How Do Freezer Alarms Work?

Freezer alarms work by giving either audible or visual alarms when the freezer temperatures go beyond or fall below the preset temperatures. You have to install it and pre-set the temperature levels first for the alarm to work effectively.

There are several freezer alarms in the market to choose from, depending on your budget and needs. The ideal freezer alarm is loud and comes with a mobile App, an easy-to-read digital display, and Wi-Fi connectivity.

These features make it possible to monitor your freezer remotely as long as you have an internet connection. The best part about it is that you’ll be able to reduce or avoid food wastage and keep your family’s health in check. That’s because you can now act on time from the warning alarms you receive on your smartphone.

Guide: What To Look For in a Freezer Alarm?

When shopping for the best freezer alarm, you have to ensure that you get the most suitable one for your freezer. For this reason, you have to consider the following features. 

  • Type of alarm
  • Accuracy/reliability
  • Connectivity
  • Alerts
  • Transmission range
  • User-friendliness

Type of Alarm

A suitable freezer alarm should give you both audible and visual warnings. This way, no alert can miss you, making it possible to make the necessary adjustments on time. The audible alert should be loud enough and shouldn’t go off until you put it off yourself.

Accuracy/ Reliability

The readings on the freezer alarms must be accurate and reliable at any particular time, despite the wide temperature range. The best types should read the outdoor/indoor temperatures and not give false alerts. The power outage alarm for freezer is reliable since it can function without power.


Connectivity also matters when shopping for a freezer alarm. You can either go for a Wi-Fi freezer alarm or a wired freezer temperature alarm.

A wireless freezer alarm is the best in this modern age as you can connect it with your smartphone. This way, you get to monitor your freezer remotely via the phone. The Temp Stick freezer alarm, for instance, allows remote monitoring via Wi-Fi connectivity


A freezer alarm gives you audible and visual alerts whenever temperatures go beyond or below the set range. However, it shouldn’t stop there. Despite your location, the best freezer alarm should send you alerts through other means, like text messages, calls, or email.

From the above top picks, you’ll receive alerts via calls, text messages, and emails from Temp Stick and MarCELL freezer alarms.

Transmission Range

The transmission range is one of the most important features to look for in wireless freezer alarms. How far can the wireless sensor reach?

Always go for an alarm with an extended transmission range. Also, consider placing the display hub close enough to the freezer to strengthen its signal. The ORIA and AMIR freezer alarms have a good transmission range of up to 100m.


Don’t complicate your life further by getting a complicated freezer temperature alarm. This gadget should be easy to install and use, with an easy-to-read and interpret display. Also, consider those that display temperatures both in Celsius and Fahrenheit. All the above top five picks have an easy-to-use user interface.

Best Freezer Alarms Review

This section gives a more detailed review of the above top five freezer alarms you can buy for your home.

AcuRite Digital Wireless Fridge and Freezer Thermometer With Alarm

Here is one of the best digital freezer alarms available in the market today. This freezer thermometer alarm comes with two digital thermometers, one for the fridge and another for the freezer.

These thermometers transmit readings to the digital LCD simultaneously, making this freezer alarm useful for fridge and freezer monitoring. The readings come either in Celsius or Fahrenheit, depending on your choice.

The AcuRite freezer alarm has a wide temperature range, from -40 to 100 degrees Fahrenheit. If the temperatures in the freezer rise above this range, this gadget will send visual and audible alerts. Still, on the alerts, this deep freeze alarm will also send you temperature updates every 90 seconds


Easy to install and use

Updates every one and a half minutes

Two sensors, one for the fridge and another for the freezer

Its display is easy to read

Two mounting options: hang it or mount it directly to the freezer since it’s magnetic

You can decide to have the temperature readings either in Fahrenheit or degrees

It has a wide temperature range

It can record minimum and maximum temperatures


It’s battery-powered but doesn’t come with the batteries

It doesn’t alert you immediately when the temperatures go out of range, only after 15 minutes

Anyone who wants to monitor the food in the fridge and freezer should invest in this excellent AcuRite gadget. The fact that you’ll receive updates every 90 seconds shows how reliable this freezer alarm is.

ORIA Refrigerator/ Wireless Digital Freezer Thermometer With Audible Alarm

ORIA is a wireless freezer alarm with two wireless sensors that lets you set the min/max temperatures manually. If the temperatures go out of the pre-set range, it gives an audible ringing alert to warn you of the same. It can track indoor and outdoor temperatures, offering you only the most accurate readings.

Since its sensing distance is 100m, you’re able to monitor your freezer from every corner of your home. The ORIA freezer alarm comes with six function keys on the central unit. All these keys are named, making it easier to use them.


It has a loud freezer alarm

Easy to install and operate

It has two wireless sensors

Enables min/max temperatures manually

Long sensing distance of 100m

It’s very versatile

It has a large and easy to read display


You can’t use it to monitor your freezer remotely for the lack of internet connectivity

You can’t add any other sensor to the system unit

It drains batteries fast

Anyone looking for a functional yet easy-to-use freezer high temp alarm can never go wrong with this product.

AMIR Refrigerator Thermometer

The AMIR freezer alarm will not disappoint you when keeping your food safe. A single purchase gives you a central unit and two remote sensors, enabling you to monitor indoor and outdoor temperatures simultaneously. With its large LCD, you can easily read its temperature recordings.

It comes with wide temperature ranges for indoor and outdoor. The indoor temperature ranges from 14 to 140 degrees Fahrenheit, while the outdoor temperature ranges from -40 to 140 degrees Fahrenheit.

You’ll hear an audible alarm every time the temperatures go out of the indoor temperature range. The transmission range is long enough, 100m, to allow you to monitor the freezer from far.

It comes with multiple installation options. You may decide to put it standing on a shelf or kitchen table, hang it on the wall, or use its magnetic part to mount it directly on the freezer. Like the ORIA freezer alarm unit, the central unit has six essential functions, clearly labeled for easier use.


You get multiple installation options

It can monitor both indoor and outdoor temperatures simultaneously

It has a large LCD screen that is easy to read at a glance

It’s pretty easy to use

It has a loud alarm that rings every time the temperatures go out of the pre-set range


Drains batteries faster

It sometimes provides inaccurate readings

You can’t monitor your freezer remotely

Are you still looking for a wireless freezer alarm to keep your food safe for consumption? Why not get this freezer alarm from AMIR?

Temp Stick Wireless Remote Wi-Fi Temperature & Humidity Sensor

The Temp Stick is the most reliable Wi-Fi freezer alarm you can get on the market. It accurately monitors the temperatures in your freezer, sending alerts via text messages and emails without monthly subscriptions. The warning alerts are not only for temperatures that have gone out of the range but also for low batteries and loss of Wi-Fi connectivity.

This freezer alarm with phone app is available to iOS and Android users. Your freezer alarm is ready to start monitoring your freezer 24/7, with only three minutes of setup. Plus, it comes with a wide temperature range of -40 to 140 degrees Fahrenheit.


It’s a remote freezer alarm

It sends you alerts when temperatures go out of range, there’s a loss in Wi-Fi connectivity, or low batteries

The setup is easy and only takes three minutes to complete

There are no subscription fees

The customer support operates seven days a week

It provides accurate and reliable sensor readings


It drains batteries fast

This freezer alarm is the best for monitoring your freezer remotely, as long as you have a reliable Wi-Fi connection.

MarCELL PRO Cellular Freezer Alarm

If you’re looking for a power outage alarm for freezer, then this can be your best option. You don’t even need a phone or internet connection to monitor the freezer’s temperatures, as it comes with an in-built cellular sim card.

This cellular freezer alarm is easy to set up and use. Once you register an account, you can immediately enjoy its many benefits. However, it comes at a subscription cost, unlike the Temp Stick freezer alarm. Besides temperature, this freezer alarm monitors water leaks, power status, and humidity.

It sends alerts in text messages and emails, and you can set up to nine people to receive the alerts.


Up to nine people can receive the alerts, both text, and email

It doesn’t only monitor temperature but also power status and water leaks

You can log online to view real-time recordings

You get to have two different SIM options, 4G AT&T and Verizon

You enjoy professional customer support, available seven days a week

It can work if there’s a power outage or failure


You must pay for the monthly or yearly subscriptions

It’s relatively expensive

MarCELL is the best power failure alarm for freezer since it sends alerts even if there’s a power outage. This is possible thanks to its backup battery.


What does high temperature mean in a freezer?

It means the freezer is too warm, which is not suitable for the food stored. There will be an alert to indicate the same, warning you that perhaps the freezer door is not shut correctly.

What temperature should the freezer alarm be set at?

The best temperature for a freezer alarm should be between  -40°F to 140°F. Anything out of this range is not suitable for frozen food, making it unsafe for consumption.

Is 10 degrees Fahrenheit cold enough for a freezer?

Your freezer must always be at 0°F or below to maintain the frozen food’s good quality and flavors. At 10°F, your food will deteriorate faster due to the presence of bacteria, making it unsafe for consumption.

How do you reset an upright freezer?

Unplug and plug it back in after 20 minutes, then press and hold the reset button for 2-3 seconds for it to reset itself.


Freezer alarms come in handy in ensuring your food remains safe for consumption, even after a long time in the freezer. Having one will help reduce food wastages and ensure a healthy family since you can take preventive measures before the food gets damaged.

With the above guide, you’re now in the best position to choose the best freezer alarm for your needs. 

Want to learn more about what you can freeze?

Check out some of our top articles such as freezing cheese, freezing vegetables, and freezing spaghetti.


About Steve

Hi, I’m Steve, and I’m the founder and chief editor at I'm by no means a trained chef but I enjoy good food, fiddling around in the kitchen, and trying out the latest gadgets. My goal is to create a place where anyone interested in cooking and learning about the kitchen can get easy-to-follow practical advice. If you have any questions please don't hesitate to contact me.
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