One feature that pulls me to this particular model (besides matching the one I already have) is the "buffered" probe. The bottle of glycol averages the temperature measurements a bit so that short durations with the door open don't cause a spike and alarm.
The probe wire is small enough to not cause a problem of air/humidity leakage through magnetic door seals.
By the way, the description may not be clear: the alarm can be disabled via a slide switch on the back.
It is somewhat unfortunate that this is not offered as a dual fridge/freezer meter.
Am adding 3 of these to my wish list for upcoming birthday for additional fridge/freezers.
At the time of this review, I see the same thermometer on Amazon with 2 different brand names (VWR, Fisher Scientific) for sale by 3rd parties only. So the brand and sellers may change over time. If so, look for the probe in the green bottle and the "Traceable" label above the LCD display. Price is around $50.
(March 25, 2012) Did get the 3 additionals in spring 2010. Very happy with all, and I think all are still running on their original battery.
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This is an easy to use and program thermometer for refrigerator/freezer. The cord is long enough to make it easy to place the base unit where needed. I had difficulty ataching the bottle to the inside of my freezer the double stick tape did not stick due to condensation. I suggest that a small holder to for the bottle that would clip to the shelving.Best Deals on Refrigerator/Freezer Thermometer w/Alarm (-50°c-70°C) ()
This picture is NOT the product I received! but what I received was what I needed:http://www.amazon.com/Thomas-Plastic-Traceable-Refrigerator-Thermometer/dp/B0069TGQPY/ref=sr_1_14?ie=UTF8&qid=1373208369&sr=8-14&keywords=refrigerator+thermometer.
I keep temperature-dependent medications in our medical office (one medication $3000 so I was looking for an alarmed system to replace the bottle-probe that I had to open the refrigerator to check). The cable has plenty of length to run from the inside back of my refrigerator to the monitor I attached to the outside of the fridge; the cable is very thin/flat so there isn't an air leak. I securely fastened the monitor using 3M strips in a very visible location so I see it frequently. It was easy to set the alarm parameters (2-6 degrees) then I tested it and found the alarm to work very accurately. There were many other, much more costly options; the was reasonably priced and does the job perfectly!
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