How does this product work in -20 to -30 F temp range?
2031454
We had it outside on a mountain top in central WV this past winter. Did not get to -20 (!!!), but only to just below +10. However, the cold did affect battery life. But snow and ice (if on the device), makes it inoperable; not necessarily the cold.
1786271
The coldest temp I used it in was about 25 degrees. It worked just fine. I highly recommend it.
1093473
It says on the bottle that for best results to use in temperatures above 50 degrees F. I would tend to think that you can still use it, but it might take a little longer or not be as thorough. That's just my opinion though.
1150484
I would say 32-150f? Basically just calibrate it at the same temperature you will be using it at. I like this unit a lot.
2070179
It freezes at 31 degrees. A freezer is needed. It also requires the full amount of time to freeze. When you do, it works awesome!
1362965
I believe that those are Celsius ranges. We are using several hundred feet of them inside cabinetry indoors. I don't think the temperature has ever been below 50 Fahrenheit and they have worked fine.
1337743
It cools down till about 15-20 C degrees lower than the temperature outside. so... if you keep it in hot environment it will not cool at all... For example if outside is 40 C so inside of your cooler you will have ]20C! not so cool.... so it depends. I use it when I travel and the temperature is always cool 10C or lower.
1200857
This difficult to answer without knowing the outside temperature...That said, mine does a good job in my motor home with temps into the mid 20*F.
1329598
I haven't taken a thermometer to it so I really don't know. The description for this reads as "Operates Temperature: -30°C to 83°C".
1931914
It worked in 30F weather today. The only reason it wouldn't work in really cold weather would be if the battery freezes.
763283
Hi, I had no problems with that aspect of using the product. I think that their instructions are probably based soley on legal advice. Hope that helps. I sure wish someone else would make a product similar to this, but BETTER. I bought my third unit a few months ago (the first two became inaccurate and inconsistent), and now that registers about 5 degrees warmer than the actual temperature. It's consistent, so I can work with it still. But the day will come again soon when it stops working ...
1676322
32 degrees to 140 degrees F....Here is a link to the manual http://www.freezealert.com/v/freezealarmspecs.pdfGreat little device.
515578
30 degrees easily; 20 is pushing it, but works alright after you been in it and warmed it up a bit. It's rated for below that, but I wouldn't use for 10 degrees or less. It's also a large bag, and on the heavy side. There are more compact, lighter bags that would be better if you have to pack it in any distance.
71609
60 degrees to a "max" setting which is above 85 degrees. So maybe it's 90 or just steady 85. I'm not sure but I can tell you it works better than I expected it to. Works well!
2063096
Bill - we have used it in cold weather with very good results (32 degrees and above), but not sure about performance in sub zero weather. Sorry we couldn't be of more help. Have you called the manufacturer for input?
421629
Measuring range is from -40 to 302 degrees F according to factory specs. Everything I have measured has been well within that range.
2206610
Nothing, what should happen? The reason you shouldn't use it above 32 degrees is you could overheat the the element or the battery. I don't use it as a battery warmer. It operates at temperatures well over 32 degrees but you have to have enough of a heat sink to dissipate the heat or turn it off and on.