This is a rather strange little gizmo. I appreciated the ability to switch of the annoying beep informing me that my damp room is damp. It would have been nice, having been alerted, to be able to turn off the very bright light that also flashes. The radar-style display is actually a very clever way to show how the humidity has varied over the past several hours. The thermometer seems pretty accurate and it would be nice to change the sad face to a smiley by improving the atmosphere in said room. I am working on it.
EVexcellent
Amazon CustomerExtech's RH35 monitors Humidity, Temperature, and Dew Point for the previous 24 hours and alerts users to indoor mold hazard conditions starting with a frown icon warning when humidity reaches 60%RH. When the RH exceeds 65%, a loud audible alarm and bright flashing red LED will be triggered. The frown icon will also appear if the environment is too dry (
1 x Complete with stand and 2 AAA batteries