Digital Psychrometer

For many decades I have been using temperature and humidity meters and find this one excellent. It is easy to use, quick to respond and accurate, all at low cost.

Nice concise controls/ settings. Measurements a little slow with .5 degree increments in change when measuring large temperature swings.

I cannot think of any way in which this little device could be improved. It is a good size, not stupidly cramped. The readings are all made at a sensible speed, not too fast and not too slow.I just wish that I had bought it twenty years ago because I have been making my wines and beers while relying on what purported to be an accurate wine-makers' gauge but whose results I have never really believed. Now I know why!A very good and realistically priced tool. Unconditionally recommended for anyone who actually needs accurate temperature and humidity readings (sorry about the dew points, which I do not need).

Accuracy stated is not correct the rH is 10% higher than actual and temperature is out by 1 degree higher than actual.Out of sync with reality but consistent incorrect rH and temp means it is useable once you have calibrated.

I purchase this to calibrate my hygrometers I have around the house, when the analog ones arrived they were showing different readings, so this was an easy way to set them all at the same reading. The HT-350 is easy to use and gives a reading very quickly, I can walk around the house checking the readings very fast, unlike the analog type shown in the picture. very happy with my purchase.

Worked as described. Easy to use and at a reasonable price

Claims +-2% RH accuracy. Great! But it seemed to only read around 55 to 65% irrespective of actual humidity. So I tested it with two Bóveda calibration packs, the 49% pack read as 60% and the 75% pack as 67%. So, wildly inaccurate and not even linear (ie you can’t just add or subtract a fudge factor to its reading). Also the battery slot is too small to refit the cover after fitting the battery, so I had to sellotape it in.I guess the claimed performance for the price was literally too good to be true.

It works well in the job I do in the health services to measure temperature and humidity, well pleased.