Baker Instruments B6020 Dial Thermo-Hygrometer, 0 to 120°C / 0-100% RH with NIST Calibration Certificate

Mounted in a hole in my generator enclosure. Easy to read and accurate. Would have preferred "F" instead of "C", but I know what the maximum temp is and that is all that counts.

Generally very good even it one unit was received in damaged conditions.

The instrument is reliable and accurate enough for home use. I think this one gives more consistent and accurate readings than the cheap digital ones. It looks kind of cool when hung on the wall. It's great that I can monitor the exact temperature and humidity of my bedroom so that I can make sure I'm sleeping in a healthy environment.

This instrument is bogus, similar to hygrometers sold in department stores which are for decorative or cosmetic purposes only. They just don’t work. I have two expensive dial hygrometers, one made by Aireguide industries in Chicago and the other by Lufft in Germany (about $100.00 each). I also have a swing psychrometer (wet and dry bulb readings) that I use to calculate the accuracy of my dial hygrometers. When all three of them say 45% and the REED hygrometer says 20%, I know something is wrong. I sent it back and got another one. Just as bad. I talked to tech support at REED and was told the instrument was adjustable with a screwdriver in the back. It is not. Their website says I can get the same instrument with a certificate of accuracy for only $275.00 more. I thought $39 dollars was too good to be true. It is. Save your money.

Easy to read and very precise. The thermometer is graduated in degrees Celsius and not Fahrenheit.

as advertised

When I ordered this I neglected to read ...it is "CENTIGRADE"

Exactly as advertised; seems to be accurate.