🌡️ Extech 445580: Pocket-Sized Humidity and Temperature Meter with Clip-On Design Review

I like it. I have thermometers and humidistats all over my house and they never match. This is the reading I trust. Knowing the humidity helps me understand why I'm freezing at 70 degrees.

Very accurate. This is the right tool when it comes to HVAC and room temperature measurement. Some idiot inspectors in San Francisco use another instrument, like a laser, to read the temperature from the reflection. objects, which is not right.

I had this $150 replacement hygrometer that I can calibrate myself. I like to take 3 meters and let them stabilize for 20-30 minutes and see if the RH% is within a few dots. Accurately measuring relative humidity is MUCH more difficult than measuring temperature. If you have to measure the relative humidity for your work, you need at least 2 meters. I found the pen style comfortable, but the relative humidity sensor stopped calibrating in less than a month. I have measured 55-57% relative…

Bought three of these three years ago, one moisture sensor is defective, the other two still work perfectly2. After seeing my initial review, Rep said Extech sent me a replacement for the defective item. I'm amazed as I've had them for a while and it's normal (in my experience) for humidity sensors to fail over time. I'll sing her praises now that I have three fully functional (and still accurate to within 1 degree/percent) humidity and temperature sensors. Pencils. Fits perfectly in your…

Love it. I have thermometers and humidistats all over my house and they never match. This is the reading I trust. Knowing the humidity helps me understand why I'm freezing at 70 degrees.

Very accurate. This is the right tool when it comes to HVAC and room temperature measurement. objects, which is not right.

Requires a hygrometer accurate below 40% humidity. Revain and EBAY have tons of cheap moisture meters, some selling for $2 or less. In dry weather they are completely inaccurate. I live in a dry part of California and the humidity often drops below 20% and during the Santa Ana winds it can drop to 5%. None of the cheap meters can measure humidity in dry air, so don't waste your money on this if you really want to know what the humidity level is on a dry day.

Bought three of these three years ago, one moisture sensor has failed, the other two are still working properly2. After seeing my initial review, Rep said Extech sent me a replacement for the defective item. I'm amazed as I've had them for a while and it's normal (in my experience) for humidity sensors to fail over time. I'll sing her praises now that I have three fully functional (and still accurate to within 1 degree/percent) humidity and temperature sensors. Pencils. Fits perfectly in your…