Customer
Reviewed in the United States on November 13, 2019
Dew point and frost point temperatures are out of whack when the air temperature drops below 32° F / 0° C.I purchased this device many months ago, and was initially very pleased with it. I used this device for meteorological observations. During most of the year, this thermohygrometer works well. Now that winter is upon us and the air temperature is below freezing, I see that I can't get a dew point temperature reading. When the air temperature is below 32° F the dew point changes to 32° and remains at that number. This device also has a frost point function. The frost point used to register when the air temperature was below 32° F. Now the frost point is also stuck at 32° all the time. The dew point and frost point cannot register at 32 when the air temperature is 27. I called the manufacturer (TES) and sent emails, but it was of no avail. They ignore me. I am very disappointed.
sillyghillie
Reviewed in the United States on May 9, 2017
I didn't give it five stars simply because it takes forever to calibrate (updated to five later), you either hold the button down and let it add value slowly, or you press it as fast as you can. (because values only adjust up- then starts over) also it has no option to turn off the beeping when you press buttons. it works really well. had to go through a learning curve to figure it out due to my error in understanding some value fundamentals about barometric pressure.update, six months or so later: also this thing is made is Asia somewhere, most likely china. so the instructions are hodge-podge just an FYI. I use this for extreme range shooting since I am too cheap for a kestrel. that means I beat this thing up. It gets tossed around, dropped, thrown, and it has yet to fail me. I am still on the same battery it came with, and it still procures very accurate readings as far as I am concerned. if you are looking for something that reads absolute pressure and ambient temperature accurately and dynamically for shooting purposes- this thing is a fantastic option. updated to five stars for its value and durability.
Stevets
Reviewed in the United States on September 20, 2016
Nice unit
Shawn Fields
Reviewed in the United States on October 28, 2016
It works very well