AcuRite Digital Wireless Fridge and Freezer Thermometer with Alarm, Max/Min Temperature for Home and Restaurants (00515M) 4.25" x 3.75"

After having the compressor go out on my LG fridge at 16 months and going without for 4, I wound up getting a replacement under the warranty. Not sure if this compressor is still the KNOWN bad one, I want to keep up with the fridge and freezer temps. That way I can transfer foods if necessary instead of losing it all because I didn't know the compressor died. I bought the standard refrigerator thermometers. The cheap ones varied as much as 8 degrees. The more expensive one seems to be reliable. BUT, I have to periodically do a manual (walk to the unit and open doors/drawers) to do this. We had a power blip last week and when I checked 40 minutes later, the temp in the fridge and the freezer had gone way up - almost to 50 for the fridge and from 0 to 20 in the freezer. Had I not needed something in the fridge, I would not have known. I pulled the plug and let it reset, plugged it back in and got the temp back to normal. That is a really long lead in as to why I bought this. I want to be able to see the current temp at a glance while I am in the living room. This unit gives me that - plus I can see updates every 15 seconds. It also shows the lowest and highest temps over the last 24 hours. I have learned that the freezer (set to 0) goes from -7 to 20. The fridge (set at 39) goes from 36 to 43. I can now set alarms for both the fridge and freezer if the temps go higher than what I feel is safe. It is obvious when the freezer goes into defrost and it doesn't stay high for too long. The range on this unit is 75 feet. I highly recommend this unit to anyone who has had temperature issues with their refrigerator and especially to those who have an LG with the 'inverter compressor'.

I purchased this to monitor the temperatures in my Frigidaire refrigerator as I had an episode where items in the refrigerator (i.e. cans of water and a steak) were frozen and items in the freezer (i.e. fudge pops) were partially thawed and I was concerned my refrigerator was malfunctioning. The installation was straight forward with the unit coming to life immediately after installing the batteries in the 2 sensors and the base unit. Each sensor requires two AA batteries and the base unit unit requires three AA batteries. A total of 7 AA batteries are required. I installed Lithium batteries in the sensors as they have a broader operating temp range than alkaline batteries (i.e. good down to -63F). The base unit provides min and max temps in a 24 hour period which is quite informative. The base unit has magnets if you want to attach it to the exterior of the fridge or a pop up stand if you want to place it on top of your fridge, or it can be mounted on a wall. Very convenient. The only down side is that the suction cups for the sensors don't work. The suction cups popped off the wall of the refrigerator and freezer so I just have the sensors laying flat on the shelf. The unit is well worth the money I paid for it and I highly recommend it. In my case I set the temperature setting for the refrigerator to a higher setting and made sure the fr4eezer door was not left inadvertently open with temperatures confirmed by the Acu-Rite monitor as -1 F for the freezer and +37 F for the refrigerator. Perfect.

i purchased this AcuRite thermometer system to independently test several portable medication refrigerators, and it has been one of the most useful purchases in the entire process. The system includes two wireless sensors, allowing me to monitor temperatures in separate cooling devices without constantly opening them. This was particularly useful because I was testing the coolers in a hot bedroom, with ambient temperatures reaching approximately 80–90°F. I especially appreciate the minimum/maximum temperature history, configurable temperature alarms, and ability to compare actual sensor readings against the coolers' built-in displays. The sensors helped me identify meaningful differences in cooling performance that I otherwise might have missed. My biggest complaint is their physical size. They're quite bulky, especially inside compact cylindrical medication coolers, where a single sensor can occupy a substantial amount of the available storage space. For testing refrigerators, freezers, and larger coolers, they're excellent. For permanently monitoring a very small medication cooler, I would prefer something much smaller. Overall, I'm very pleased with the system. It's straightforward, useful, and gave me considerably more confidence in evaluating my cooling equipment. I would absolutely recommend it for independent refrigerator temperature monitoring.

We have three chest freezers, two of which are out of sight in the basement and full of veggies from the garden, venison from the property and meat from our nephew's farm. The concern has been losing either one, or both if the GFCI trips, and their contents. One freezer is about a year old and the other just a couple months. I saw this system recommended on a FB group and the Amazon reviews seem favorable. So I decided to give it a try, especially since it has a WiFi connection, so the information display can be in the house, and an alarm. We can check the freezers' status at any time and the alarm will warn if we have a pending disaster. It arrived well-packaged. The box exterior is plain cardboard with a plain label just at one end. No fancy marketing! I ordered four AA Lithium batteries at the same time for the sender units, which are recommended by the manufacturer for use in freezers. After installing standard 'Copper Top' batteries in the display first, then the lithiums in the sender units, the temperatures of each sender unit appeared on the display immediately. They were the same at about 72F. To me, the instructions were clear, though it probably does help to be mechanically-inclined! I set the alarms for min and max temps and took the sender units down to the freezers. I hung them on the baskets with tie wraps as the included suction cups wouldn't have stuck on the dimpled freezer walls. The Amazon photo showing the silicone loop wrapped around itself is not very practical as the loop is small compared with the size of the sender unit and you'd have to really stretch it. Too much effort in the depths of a full freezer! When I returned to the main floor, the alarm was sounding. The displayed temperatures were slowly going down as the sender units adjusted to the freezer internal temperatures, but were higher than my max temperature settings. I pressed the "Bell" button to put the alarm to sleep. The display seems to update every few seconds, not instantaneously. After a few minutes, the displayed temps reached the freezer internal temperatures, which were just below 0 deg F. Each reading was slightly different due to being in different freezers of different makes and settings and the temps vary anyway within a few degrees as the freezer compressor cycles. 0 deg F is what is expected though for a chest freezer. I have my alarm settings at -20F and 15F for both freezers. The alarm won't go off for a few minutes if it reaches those temps. This avoids alarms when the freezer lid is opened to put in or take out food. The signal display was indicating max. strength with the display unit maybe 20 ft (straight line) away from the freezers on the floor above. Moving at least double that into the kitchen, where the signal has to pass through a thick natural stone wall in the basement, as well as the floor structure and around various steel/wood heating ducts in the floor, the strength was still high. I was impressed, considering the sender units are also inside a cold, metal box! The two small magnets on the back upper corners of the display unit, aren't quite strong enough to hold it firmly onto the refrigerator door. It slides down as the door is shut and there's a risk of it falling off and being damaged. I have it sitting on the dining room dresser, where it's out of the way, but visible. It could also be hung on a nail on the wall. While a little pricey compared with other similar units (with more 1 Star reviews!), $35 is a small price to pay to avoid spoiling all the valuable food that is in the freezers! So far the system is performing well and to design. I will update should anything go wrong! UPDATE: Several months in and the system is working just fine. After the first week or so, I noticed one of my freezers was 10 degrees or more colder than the other and unnecessarily so. I adjusted it and now I have comparable temps, though the later-purchased freezer has a wider range of temperature fluctuation , due to a less precise control system. Very pleased!

This was the best purchase I made in a while. I had it measuring two different areas of a small fridge to determine variations in temperature, and it did not disappoint. Then, I purchased a "coolbox" type of tabletop cold storage and put one probe in there and kept one in the fridge. The fridge only has a dial for temp, whereas the tabletop unit had a digital setting capability. I wanted to run one vs the other, and, I used the 24hr temp history to determine fluctuations in temp, as what I'm storing needs a constant temperature. Sure enough, the coolbox beat the fridge hands down, maintaining a constant temp (once the target temp was reached) with very little fluctuation over a 24hr period, while the fridge varied from 33 to 41degrees F. I'm getting ridge of the fridge! I'd recommend this product to anyone needing to gauge temperature fluctuations and needing to determine if a piece of equipment maintains its target temp.

Works like a champ. Second time I purchased this unit. A must-have to keep tabs on a new refrigerator to make sure the temperatures are as needed. The only way to make sure your fridge and freezer maintain the correct high and low temps. Easy to use. Takes 5 minutes to set up. Especially helpful for power failures and to make sure your food did not thaw and refreeze...

I really love this product a lot. I have a very basic fridge/freezer unit in my apartment that does the job as far as cooling food and freezing ice and meats go but I have no idea how cold it really is, and my only way to adjust it is turning a dial to cold or colder, and this doesn't give me any idea how cold it actually can get as a lower limit. This does make sense just by design. The fridge will only be as cold as it can cool all the items inside in relevance to the ambient room temperature. That's just fridge 101. This product has made it super simple for me to be able to track exactly how cold my refrigerator and freezer are at any given time. I store some medication in my fridge, but when my fridge is more empty, I need to turn the dial to a warmer setting so my medicine does not freeze and denature. On the other hand, when my fridge is full of food, especially canned beverages and liquids, it needs to work harder to keep the same level of cold so I need to turn the dial to a colder setting to maintain that 36 - 46F range. AcuRite's digital reader has taken all the guess work out and I can adjust my dial with more certainty that my food and medicine are being stored correctly. In an ideal world, my fridge would just have an temperature setting that it would automatically regulate towards to try and maintain that desired amount, but this is as basic as fridge gets, so instead we use addon tech like this to bring the 21st century to the ice box. Oh, and I bought one for my parent's fridge as well that is "smart" and has the "desired temp" input as a design, but now we can get a proper reading of how cold it is and how long it'll take to get to that temp too thanks to this reader. As a bonus, I threw its thermometer directly in my medicine box inside the fridge since that is the item I'm most concerned with.

I purchased to monitor fridge temps in an rv 12vdc fridge and it works great for that. No need to open fridge to check temps now. Has great range, manual says 75ft. Could used in tow vehicle if needed to be sure food stays cold. Also used in the house fridge. Works as expected. Will buy another to use in both fridges. Highly recommend.

I can't attest to the specific accuracy, that it's within x degrees and so on, but what I can attest to is that it's very easy to read and it's more than accurate enough for my uses. I also love that it shows the high and low over the last 24 hours. The reason I got them is that my fridge one day lost it's temperature and some food spoiled but not enough to be obvious. We almost got sick but luckily caught it on time. As a result we bought this to monitor the temperature and it's been a great piece of mind to be able to just look at them at random times and know that the last 24 hours the fridge has always been within a certain acceptable range. They have been running on batteries for months and they are doing great. That being said I would recommend using two thermometers (why I bought this item because it comes with two) so that they can be located in different parts of the fridge. Not only does it give you more confidence that they are working and accurate at first, but later on you can locate them in different areas such as the door which has a tendency to have a lower temperature if it's been left open and so on.

good product, very happy with the purchase

... the frustration of a fridge/freezer in the garage stopping working and not noticing until a few days later, I know the pain involved in having to throw out perfectly good (and expensive) food. So, I resolved to stop it happening again and I purchased these. Reviews that are written after time and not when in the initial haze of consumer contentment always carry far more weight, in my opinion, and this is one such as I have had these since November 2022. I am writing this now because, thanks to these beauties, I managed to head off another fodder fiasco when a different fridge/freezer in the garage suddenly stopped: I fixed the problem before I had to throw anything away because I became aware of the issue in good time. At last - something I bought that actually SAVED me money !! These are fairly straightforward to set up (although to set the warning alarms takes a little effort) and I am pleased to report that the batteries (two AAs in each) I installed in both sensors over a year ago - ALWAYS use lithium ones if you want a better experience ! - are still functioning just fine (although I have changed the three AAs in the receiver unit on one occasion). I decided not to keep the alarms as I didn't want any potential beeping in the middle of the night, so I simply verify the temperatures every day. It's actually quite fun to think that you are checking on the temperature of an appliance outside of the house ! There is an easy-to-see record of the previous 24-hour's minimum and maximum temperatures at the bottom of the screen and one push of a button shows you all the lowest and highest temperatures from when you last reset the unit. All numbers are clear to read. I do think that this set is quite expensive, though (and it was £60 when I purchased it), but one's choices are somewhat limited and at least I can show that they do work, so I guess it equates to value for money - especially when one compares it with a cost of replacing the contents of a well-stocked fridge/freezer !! I have the receiver unit on the side of a fridge in the kitchen (decent magnets present) and the actual sensors are about 20 feet away in the garden behind a metal garage door; I have had no issue with signal strength. And that's about it. As is my wont, I shall update this review if anything ceases to function as it should. If there is something specific that you would like to know that I have missed out, please ask a question and I shall do my best to respond... FV

Las lecturas son confiables, los compré para tener más control de los alimentos que almacenamos en el refrigerador, apesar de que nuestro refrigerador tiene un display digital para ajustar la temperatura, no confiaba en la precisión y quise tener un segundo monitor con estos sensores y las lecturas son muy parecidas aproximadamente +-2 grados. La opción de sujeción no es muy buena ya que se caían constantemente, opte por simplemente dejarlo en la charola del refrigerador sin tenerlo colgado en algún lugar en específico. Muy recomendados

Para saber las variaciones de temp del refrigerador, ya tengo 10 meses con el, sin problemas