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

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.

Exactly as advertised, works great, we are getting more power outages then in the past 30 years so this is great tool to keep the fridge and freezer in safe zones. No batteries included, I like that, fresh batteries instead of cheaper junk.

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!

Good product. The temperatures on the freezer and refrigerator are off by 6 degrees. It will read 37 degrees in the fridge but actually 31 degrees. Best batteries to use are Amazon rechargeable batteries. Been over a month and they are working just fibe

Love this. I used to have an indoor-outdoor thermometer in my fridge, with the “outdoor” sensor in the freezer, but I placed this one on top of my fridge with the sensors inside, and now I can more easily monitor the current temps and the highs and lows. Which was a surprise, since the refrigerator varies from 31 to 42 degrees, and the freezer varies from -5 to 10 degrees. I leave the display on 24 Hours, which resets highs and lows daily. It also tracks All-Time highs and lows, which might be good to track temps during a longer power outage.

I bought this for our new fridge after having temperature issues with our old one.Easy to set up and started working right away. Seems accurate as temps match the internal thermometers.I set the alarm with a lower maximum temperature to test it, and the alarm went off and was loud.This gives me peace of mind without having to open the doors to let the cold out while checking internal thermometers.Plan on buying another for the one in the garage.

I use this to monitor a freezer in the basement and a refrigerator in another part of my home. The sender is in a freezer in my basement and the receiver is upstairs, connects without issue. It sends a signal updating the temperature intermittently. This is my second order which I use in my Rv. Magnets hold well. I usually take it off the door on travel but it has held when I forgot. Looks good and relatively modern, not cheap like some of the others.

Works very good. you can calibrate the sensors to get the perfect set point. no back light, but thats ok. I use for my trailer refrigerator. that way I can see the temp without opening the door. I reccomend