Digital Wireless Fridge and Freezer Thermometer with Alarm and Max/Min Temperature for Home ,LCD Display, Restaurants (00986M), 0.6, White

Usually I find some little annoyance with consumer-grade devices but system has given me no problems and all the promised features I use have worked flawlessly. I only noticed one time when I first set it up that it lost signal with one of the sensors but it automatically reconnected after about 30 seconds with no manual intervention (like reset or reboot). No other issues noticed in the rest of the six months I had it installed. The min/max function is great because you can see if there were any problems between when you looked at it last. This is also very helpful if you have a new refrigerator and you are trying to get the settings perfect. I would also think it would be useful for a fridge with electronics to make sure they giving accurate readings. Note that used lithium batteries instead of the included alkaline as, according to the instructions, they perform better in low temperatures. I cannot comment on the alarm feature as I have it disabled. The magnet on the display is decently strong and it hasn’t moved around at all even with repeated door open and closing. The controller color is grey/silver and looks great on my stainless fridge. Probably would look good on most other colors too. The current temperature readings are large enough to be seen from about 10 feet with decent vision and lighting but the display itself is not lighted (which makes sense as it runs on batteries). Highly recommended!

tl;dr version: This works fantastic for monitoring a standalone freezer in the basement. Full story: We have a standup refrigerator-sized freezer in our basement (mainly because that was the only place in the house we had room for it). We've managed to leave the door cracked open a total of 3 times now in about 10 years, due to simple negligence, and have lost hundreds of dollars in spoiled frozen foods as a result. There's no reason this needs to ever happen, so after the last time a month or so ago, one part of my fix was that I wanted something to sound an alarm if the temperature rises too much. Enter this simple wireless temperature sensor. Since the use case here is for a single-chamber freezer, and our fridge is well out of range 1 1/2 floors above on the other side of the house, I opted to just put both sensors inside the freezer. One is on the top shelf of the door, theoretically the highest temperature inside the freezer and the first location to start thawing if the door were left open. The other is buried deep on the bottom shelf near the back, which is theoretically the coldest area of the freezer. This way I get an idea of the effective range of temperatures throughout the freezer at any point in time. In case anyone's curious, there seems to be a fairly consistent 15F degree difference between the two sensor locations, plus or minus a few degrees. Installing the batteries and connecting the sensors to the display unit was quick and effortless. I didn't have any lithium batteries on hand, so despite the freezer being below the optimal range for alkalines, I went with what I had and gave it a shot, knowing I could just go pick up some lithiums the next day if it didn't work. So far the sensors haven't had any battery issues despite the subzero temperatures. Placing the sensors inside the freezer was also easy, although I couldn't make use of either the suction cups due to the low temperature or the wire shelf straps due to the shelves being thoroughly encased in frost and ice. That said, having them just sit on the shelves seems to work fine. The display unit is magnetically stuck to the front of the door and has had zero issue so far with the signal from the sensors punching through the metal frame. Both sensors show a very strong signal indicator. I have not had an opportunity yet to test the alarm feature. I did reprogram the "refrigerator" sensor's alarm range to freezer settings and turned on the alarm for both. As pointed out in the manual, while one sensor is labeled as fridge and one as freezer, they're otherwise identical and you can adjust the alarm range for each one independently. You're also not limited to just cold temperatures - the nominal max is 158F/70C although the display only goes up to 99.9 in Fahrenheit mode - so you could easily monitor something other than a fridge and/or freezer with this if you wanted to. Anyway, one of these days I should probably take one sensor out of the freezer for a while and let it warm up just to confirm that the alarm is audible from another room. Overall, I'm very happy with this purchase, especially considering the reasonable price.

I bought two of these because I wanted to monitor three areas: 1) the fridge compartment of my refrigerator, 2) the freezer compartment of my refrigerator, and 3) a deep freeze located in my kitchen about 15 feet from the fridge. I bought the first thermometer about 18 months ago and added the second unit a month ago. Here's what worked well: - The temps are accurate enough based on comparing with a couple of analog thermometers I have, with only a degree or two difference here and there. - The alerts are simple to set. - The alarms are loud enough. I can barely hear them upstairs in my bedroom, but I can hear them. If I'm awake, I can hear them anywhere in my house. Here's what did not work well: - There is a conflict between the two base stations and the four remote units. I've deployed both freezer remotes plus a single fridge remote. The freezer remotes each paired with their respective base stations, but the fridge remote paired with both. Not a bit deal to me--the fridge remote on my deep freezer base station is just a duplicate of the fridge remote. But if you have two fridges with freezers, you might wind up running into issues keeping the devices separate. The biggest issue I have is the alarm setting for my fridge's freezer. My freezer has a defrost cycle that heats up the freezer compartment to around 16 degrees for a very short time before rapidly cooling back to -10 degrees or so. My understanding is that this behavior is normal, and the food stored in my freezer will not be affected due it it's being frozen solid and the short duration above 0 degrees. But this of course means that I can't set my freezer remote alarm to the 0 degrees the FDA recommends as a minimum freezer temperature. The best that I can do to take advantage of the freezer alarm is to set it for 16-ish degrees in case my freezer completely fails. Overall, I'm happy with these thermometers. They have worked reliably so far. In fact, this alarm notified me last month that my freezer was too warm. Turned out the defrost wasn't working and the coils were iced up. I don't see any way around the daily temperature spike due to my freezer's defrost cycle, so I can't blame this device for not being able to tell if operation is normal or not. Actually, what would be great would be a freezer whose thermostat is tied in to the defrost process so it would know what acceptable temps are during normal operation and during defrost cycle. It could then send appropriate alarms.

Great product! I have a double door refrigertaor and a deep freezer. Makes me feel safe to be able to monitor the temperature in both. I actually turned down the freezing control to lowest setting in my deep freezer, when I realised that temperature was always showing as lower than -18 celsius. Also helped me realise that freezer in my samsung double door has very wide variation between -5 to -18 on daily basis. Made me realise that it would the reason why ice cream are kind of soft , in the freezer of my double door, compared to deep freezer. I guess that is the reason consumer product companies, don't put temperature displays on the common refrigerator.

Easy to set up with great instructions. Accurate and easy to use. Would be better if it had a backlight but not a deal breaker. Great to glance at and see what my fridge/freezer temp is in the back of my canopy.

Nice product. Elegant style and works seamlessly. Having a serial number on it would make it professional and could be used for places need calibration and testing and tracing back the device, example usage is medication fridge for hospital and nursing homes. I wish the manufacturer would see this and include a serial number on it. Good product good price!!

Perfect... Item as described..quick delivery

Its very good peice .. and give you correct dgrees .. thank you