Humidity Sensing Wall Control (White)

This is a great device for converting any exhaust fan to function like a humidity-sensing fan. The controls will be far more accessible than that of a typical exhaust fan with the sensors and controls incorporated in the fan enclosure. The trick with this device is to take advantage of all the control and adjustment options. If you don't adjust the device to your particular environment, the fan may run too frequently or run constantly. You have to adjust the sensitivity for the average humidity in your home, first. Then, the device senses a rise in humidity and turns on the exhaust fan to run until the humidity drops to your home's average humidity level. Buyers who complain about this device causing the fan to run constantly have probably failed to properly adjust the sensitivity setting of the device. I too did not get it right when I first set up the device, but re-read the instructions and was able to get the desired result. It's a great product!

We use the switch to control an exhaust fan

This is the worst device I have ever seen; it doesn't work! It's horribly designed, defectively engineered, and/or badly manufactured. The cover to the controls is extremely difficult to remove; while the top edge pops off halfway easily, it can't then be removed. Instead you have to push the top back into place, then use a knife edge to fiddle with the actual latch under the bottom edge. After removing the cover, you confronted with the two additional terrible design elements. First, you need a magnifying glass or smartphone magnifier to see the control's labels. Next, you need a custom tool (which they don't provide) to adjust the 3 dials, because no standard tool (e.g. #1 Philips, narrow bladed computer screwdriver, etc.) works; they're either too big or too small. It's almost like Nuton designed it to be frustrating. Finally, unless you're 20 with perfect eyesight, their instructions are too small to read without a magnifier or enlarging them; too cheap to use 25% larger paper so they could print it in 10 point type instead of 4 - 6 point microtype. Then once it's installed and adjusted, it doesn't work. It cycles ON and OFF all day at 40% humidity, but it doesn't turn ON at 100% humidity during a shower that steams up the mirrors. So what's the point of a humidity sensing switch that can't detect high humidity or increasing humidity, but continually cycles ON and OFF when low humidity is present; I guess Nutone wanted to sell a device that wastes electricity, generates needless noise -- all night long -- and frustrates their customers. On the other hand, it's probably more likely that their electrical engineers didn't know what they were doing, and/or their executives wanted to used the cheapest components to maximize their ridiculous pay. Don't buy it; an utter waste of your time an

Broan 82W "Premium humidity sensing wall control" is what the box says. Easy to install as a replacement switch as long as you have a neutral. Easy to operate as an on off switch. The Auto Sense for humidity percent adjuster does nothing and the sensitivity adjuster does nothing i.e. whatever setting you have it on the fan will come on randomly and stay on according to the time you have set, I have it set to the lowest (10 mins) as it keeps coming on for no good reason. I am located in a dry climate, I would hate to think of how this switch would behave in a humid climate. I will probably put the old switch back in when I have time but as it is installed away from sleeping areas it's not really bothering anyone just wasting electricity. It is kind of cool when it scares people by just switching itself on. I have contacted Broan and see if they think it's just a faulty switch and I'm waiting to hear back what a pain.