★★★★ 32 real customer reviews average rating: 4.1 stars
2 Stars By Joseph F. on 2017-10-30
Not a good choice for professional use
I had this as a backup for my $150 hygrometer which I can calibrate myself. I like to take 3 meters with me letting them stabilize for 20-30 min and see if RH% is within a couple of points of each other. Accurately measuring RH is SO MUCH harder than measuring temp. Anyone who needs to measure RH for their job should have at least 2 meters. I found the pen style to be convenient but the RH sensor fell out of calibration in less than a month. I measured 55-57% RH with 2 other meters but this pen said it was 65%. That's a big difference. It now sits in my desk.
5 Stars By Geoff Sarkissian on 2012-03-30
Accurate and useful
Wanted a hygrometer that was accurate below 40% humidity. There are tons of cheap humidity meters on 2DayDeliver and EBAY some selling for $2 or less. They are completely inaccurate in dry weather. I live in a dry part of California and the humidity often drops below 20% and during a Santa Ana wind, can go to 5%. None of the cheap meters can measure dry air humidity, so don't waste your money on them, if you really want to know what is the humidity on a dry day.
5 Stars By Laura on 2017-11-22
Very robust and accurate. Professional tool.
Very reliable professional tool. Just wish we would stop losing them.
5 Stars By dukman on 2017-09-21
5 Stars By Jim Davis on 2017-10-24
Does exactly what I need it to do, read temperature and relative humidity inside house during a mold inspection.
5 Stars By Bonnie on 2015-01-18
Excellent tool for humidity and temperature readings.
3 Stars By Larry Hoage on 2015-09-23
but I do like the fact that it turns off by itself
It works well, but I do like the fact that it turns off by itself. I go back to check a reading and it has turned off and I need to start over.
2 Stars By Chris Jones on 2016-09-21
Not ready for use out of the box
Needed to be calibrated to be used, if you have the calibration solution containers already this will be good for you.
3 Stars By WaltSharpIdea on 2015-10-25
Low quality and not accurate when delivered - you would need to get the calibration kit if you can find it
5 Stars By SR_25 on 2016-12-11