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🚪🔔 Never miss a fridge door moment again — protect your food and energy with style!
The FRIDGGI Freezer Door Alarm is a compact, battery-powered device designed to alert you with progressive sound reminders if your fridge or freezer door remains open. Featuring four adjustable volume modes up to 110 dB, it helps prevent food spoilage and energy waste by encouraging timely door closure. Easy to install with included batteries and adhesive, it’s a smart, sleek solution for modern kitchens.






| Asin | B0813GNDB8 |
| Audible Noise | 110 db |
| Battery Description | Alkaline |
| Best Sellers Rank | #7,001 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #155 in Refrigerator Parts & Accessories |
| Brand | FRIDGGI |
| Color | White |
| Compatible Devices | Mini Sensor |
| Control Method | Touch |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,211) 4.4 out of 5 stars |
| Item Dimensions L X W X H | 0.79"L x 1.38"W x 2.56"H |
| Item Type Name | Freezer Door Alarm |
| Item Weight | 1.28 ounces |
| Manufacturer | Fridggi |
| Maximum Range | 60 meters |
| Mfr Part Number | Fridggi-52321 |
| Model Number | Fridggi-52321 |
| Mounting Type | Door Mount |
| Number Of Batteries | 3 LR44 batteries required. (included) |
| Number Of Items | 1 |
| Power Source | Battery Powered |
| Sensor Technology | Contact Sensor |
| Size | Compact |
| Unit Count | 1 Count |
| Upc | 605928126018 |
| Voltage | 4.5 volts |
User
FRIDGGI - Refrigerator Door Alarm with 60 Second Delay, 2, 3, and 4 Minute Reminders
Works way better than I expected. You can adjust when it triggers by just moving the magnet side back a bit. The alarm is very reliable which has brought less spoiled food from my fridge that likes to pop open when I close either side of it with just a little force.The installation is super easy with two sets of adhesive pads that are very strong. Should you need more you can use 3M mounting tape.This is loud enough to hear from 3 rooms away and very accurate on when it's misaligned after you calibrate it well.The connection between the receiver and the magnet is perfect and works extremely well.Highly recommend this!
User
Easy to install on any freezer. Loud alarm.
We just found our freezer door open the other day and everything was starting to thaw. Thankfully, we didn’t lose everything. I immediately looked for an alarm and found this one. So far far, this is a fantastic little alarm. Very loud sound if you leave the freezer door open for for any long amount of time. No more worries about leaving the door open. Would highly recommend getting one of these if you’re freezer has the ability to be left open and no alarm built-in. Save yourself hundreds of dollars and ruined food. You won’t be sorry.
User
Easy to use and a life saver
I don't write many reviews but I felt like I had to write this one. If you are hesitating on getting a freezer door alarm, don't hesitate on getting this one. I have let my food go bad/ thaw multiple times before I broke down and bought this. Since I have gotten this I have heard the alarm go off at least five times and in my head thought thank goodness I bought it because if not it would have happened again and I would have lost a freezer full of food again. This alarm is great you can hear it from the other side of the house and it gets louder and more frantic the longer you leave it open. Make sure you install it from the top and try your best to get it to where even if the door is slightly cracked it will go off. That's how I installed it and it has saved me many of times. I wish I would have bought this sooner
User
Works well, easy to apply
Worked well. I have a pull out freezer bottom and the gap works.Pro- med level is good volume for a small house, increases noise levels at every few min or so.Con: beep are intermittent and lower level volume at first, may be confusing on what the sound is. Also beeps lightly at EVERY opening
User
Reliable addition to our French door refrigerator
Our refrigerator had no alarm on it causing it to be left slightly open at times, and discovering it much later. This little alarm has been great because it gives a very faint reminder beep when the door is opened, and then a louder beep after a minute if the refrigerator door is accidentally left open. So glad I purchased this. Very reliable.
User
Easy, Effective, Economical
Very happy with this item. I have an old side by side refrigerator which works very well but over time the suction on the door gasket has weakened and it can sometimes leave the door slightly ajar if we don't shut it firmly. The doors are curved so I installed the alarm on top; it was easy enough and it works! I no longer have to worry about wasted energy or spoiled food due to an open fridge door.
User
Meets Expectatiions
Lives up to its claims. Easy to install. Works well. Prevents errors leaving refrigerator open. Worth the price.
User
Works on most types of fridge/freezers
Someone accidentally left the freezer open so I bought this hoping to prevent future incidents. Very loud, which is helpful because the freezer is in the garage. The instructions show it can only be used on certain types of fridges and freezers, the split combos normally don't work but if you can open it from the sides it's suppose to work with this. Very simple so I appreciate it doesn't need bluetooth and all the other fancy requirements like some alarms.
User
Fiddly to instal exactly right, but it does work
After yet another freezer-not-being-properly-closed-by-returning-offspring-after-a-nightout, we got this device. I had previously had a more expensive wireless temperature monitor for the same purpose, that was really designed for professional settings like labs etc. It had 2 sensors you just put in the freezer/fridge and then a receiver/alarm unit located within range. But I found it went off occasionally for random temp fluctuations not actually caused by the door being left open, and was then fiddly to reset. Anyway I made the mistake of thinking 'those days are over now the kids are older/more responsible....' - well, you know how that one ends.A week ago we lost another load of frozen food after an all-night door slightly ajar situation which caused the tempertaure to rise so much, we had to defrost the freezer completely and start it again (BTW top tip - last time this happened, we thought something had gone wrong as it simply wouldn't reach freeze temperatures again. Paid £250 for a Miele callout to be told 'defrost it completely, then turn it on again, and leave it for 12 hours'. So that's what we did this time, without paying for the advice - works perfectly). So now I've replaced my old temperature sensor with this distance monitor.So - as for installation - this is the tricky part, and of course it all depends on how your freezer is located and whether it's built in or not. So ours is built in and I decided the neatest solution would be to position the device on the underside of the door - see pic. The main unit went on fine - luckily there was a 4cm gap between the back edge of the door of the freezer, and the vertical panel between the door bottom and the floor. The sticky pad for the main unit worked fine also - very sticky and am confident it will stay on for a while, despite being at maximum risk (ie with gravity applying constant pressure and in an area exponse to damp/cold). That said, I only needed to apply it once - see below.The instructions were that kind of non-English, minimal type you get from, presumably, Far East manufacturers, but it's fairly easy to work out that the different volumes of alarm are activated by 1, 2, 3 or 4 presses of the 'set' button.The next bit was the hardest part. I wanted to position the smaller 'activator' unit so that even if the door was only slightly ajar, it would go off. So here's what I found:1. The alarm triggering depends not only on how close the units are to each other in terms of the gap between them side-by-side, but also 'vertically'. So you can see from the pic how I ended up with the smaller unit moved towards the 'top' of the main unit. I found this to be the exact right spot for triggering even a slight gap (say, 1cm or less) of the door being ajar. This is crucial for us as it only takes this kind of gap, left open all night, for the freezer to get upset.2. The sticky pad for the smaller unit stopped working after 3-4 efforts to get the positioning just right - presumably because I was sticking and unsticking it to a slightly greasy, cold, aluminium surface. Cleaning the surface didn't help, so I gave up on the pad. I took it off from the unit and instead improvised with insulating tape and UHU glue. I also marked the final location with a Sharpie, as you can see in the pic, for good measure, in case it gets knocked off.3. My wife is very sensitive to noise, but we also need the alarm on the loudest setting, so we can hear it when we're in bed late at night, as that's when certain people seem to visit the freezer carelessly. So it will be interesting to see what happens if we are opening the freezer to load/unload and the louder alarm is triggered (think this is 2 or 3 minutes, but again neither the instructions or the page here is particularly clear on this point). However - I can confirm - it's very loud and you should be able to hear it anywhere.4. Finally, just to note, to replace the batteries you apply a bit of pressure to the front of the main unit and push it 'upwards' (towards the logo end), and the cover should just slip off. I can do this even when its located under the door like this - not difficult.Hope that's all helpful! Will repost an update if it goes wrong/doesn't last long.2026 update:Don’t know if anyone is still reading a 2021 review of a fridge alarm but suffice to say, 5 years later, I’ve just bought another one for our new house! Indispensable - even for brand new fridges with a supposed alarm system. Don’t know why but for some reason they just don’t seem to work if you leave the door slightly ajar. This one always does!
User
work well and doing his job
accurate with even a slight gap in the refrigerator door, very happy with the product,
User
Parfait une fois qu’on a compris comment ça fonctionne
Une fois qu’on prend le temps d’attendre les minutes indiquées dans le mode d’emploi, c’est très efficace
User
Shocked at how well this works... highly recommended.
I have a habit of not closing the basement freezer door properly, which resulted in spoiled food more often than I want to admit. I first tried putting a magnetic thermometer by the door and setting a temperature alarm, but this has two drawbacks. First, the alarm won't sound until the temperature inside has already reached a dangerous point, and even worse... the alarm wasn't loud enough to hear even one floor up from the basement. This alarm solves both those issues. If you are careful about placing the alarm and the magnet it will detect of door gap of as little as 1/8". If the door is that close to closed the door seal magnet should pull it the rest of the way in. Even more important than that though is the volume of this alarm is LOUD! As soon as you open the door you hear a quiet "chirp" which repeats every 20 seconds or so for the first minute, then it starts to beep louder and longer for the next couple of minutes to remind you to close the door when you are done. If the door remains open past four minutes the full siren goes off and I wouldn't be surprised if the neighbours could hear it. If you need to door open longer than four minutes, say for defrosting, there is a small switch on the alarm portion to turn it off.You can choose several locations around the door to mount the alarm and magnet and it comes with adhesive shims to equalize the door and body surfaces if they aren't exactly aligned. The handle side of my freezer door is only about an inch from the wall so I chose to mount the alarm and magnet on top of the freezer and door instead of the side.
User
Fonctionne 👍
Bon produit. Fait sont taf, il suffit tout simplement de bien l'installer.
Trustpilot
3 weeks ago
2 days ago