Leviton Humidity Sensor Switch for Bathroom Exhaust Fan, automate Ventilation, air Circulation, Moisture Control, ¼ HP, Single Pole, DHS05-1LW, White

I just installed 2 of these in our 2nd floor full baths, and both are working well! They turn on within 30 seconds or so of the showers being turned on in both bathrooms. Both bathrooms have 7.5 ft ceilings, and the fan switches are located no more than a few feet from the tub and shower enclosure.I programmed ours to turn on at the lowest relative humidity (35%) with a 30 minute timeout. Note that after the timeout period shuts the fan off, if the relative humidity (RH) still exceeds the preset percentage limit, the device will reactivate the fan for 50% of the programmed time - so if the timeout is 30 minute and the RH is still too high, the fan will reactivate and run for an additional 15 minutes, which is half the 30 minute timeout I programmed - it will do this 2X if needed, so in that case, the fan will potentially run for a total of 60 minutes if a 30 minute timeout is programmed - programmed time values are 10,20,30 and 45 minutes.Installation is straightforward - I wire nutted the line and load leads on this switch to existing pigtails for the mechanical timer that I replaced with this switch. I added the neutral lead wire from this switch to the existing wire nutted neutral bundle, and the ground lead to the ground bundle.Note that this switch DOES NOT require a neutral, but if no neutral is present, the white sleeve on the neutral lead is removed to re-identify it as a ground wire, and both that wire and the explicit ground lead are both connected to the ground wiring in the box - so while a neutral wire is not required, a ground is required in the box to make this switch work - note that in older homes without an explicit ground wire, sometimes the steel box itself is grounded, so a ground lead could be attached to the box and wire nutted to the re-identified ground lead and explicit ground lead on this switch.There are an impressive number of programmable operating modes and settings within those modes on this switch. Out of the box, the switch is defaulted to operate in bath fan mode, with a 20 minute timeout period and a 50% relative humidity setting, which likely will work fine for many folks.As mentioned, I overrode the default timeout from 20 minutes to 30 minutes, and the relative humidity from 50% to 35% - the programming is a bit tricky and may take a couple passes - best bet if you mess up is to let the programming period timeout so that the settings aren't saved, and then re-enter programming mode after your "practice run" after you have the hang of programming it.Keep in mind too that the switch can be operated manually, and will run for the programmed time when turned on; the automatic operation can be disabled by pressing the bottom of the switch for 5 seconds, and re-enabled by pressing the top of the button.

As an electrician, I tackle a lot of DIY projects around the house. When the exhaust fan in our bathroom gave up the ghost, I figured it was the perfect time to upgrade the old manual switch as well. We use a lot of Leviton products at work, so I knew I was getting a reliable brand.The main issue in our household is that my wife enjoys marathon showers and often forgets to leave the fan on long enough to clear out the humidity. This can lead to problems like mold and mildew. Enter the Leviton DHS05-1LW. This switch automatically activates the fan when it detects humidity, ensuring the bathroom stays dry without anyone having to remember to flip a switch.I was so impressed with its performance that I installed these switches in all three of our bathrooms and the laundry room. Installation was straightforward, and the switch's slim profile fit easily into our existing wall boxes. Plus, it can be installed with or without a neutral wire, adding to its versatility.In summary, the Leviton DHS05-1LW has been a game-changer for our home's ventilation. It's a smart, reliable solution that keeps our bathrooms and laundry room free from excess moisture.

Humidity sensor was installed in a bathroom to control the vent fan. Works great and keeps the humidity down. It does take up some room in the electrical box, so be sure you have room in there and that it isn't a shallow box.Setup is fairly easy, it comes preset to reasonable defaults, but you can adjust both run time and humidity level it turns on at. Definitely keep the manual around in case you need to change settings in the future since the indicator is a fairly cryptic flashing light to tell you the selected settings.

This works great for its intended purpose, but it really needs a little solid state storage. Programming is a little bit of a hassle with it only having two button, but it wouldn’t be a problem as long as if it would remember its programming through power flickers or outages. It is a real bathroom saver though, especially for people like me who forget to turn on the fan when getting in the shower. Installing it was as easy as any other switch. Value for money is fantastic though. You’ll save money over time with this. It kicks on with speed as soon as the humidity gets above the set level. Best part is, you leave it on to do its thing and it will turn off when the room has dried out, so no more replacing bathroom fans every couple of years from over use.

I added this to my master bath and now I no longer have to mess with the fan when I take a shower. It comes on automatically and turns off once the humidity level is back to normal. It just works and was an easy install.

Awesome convenience and peace-of-mind upgrade for existing bathroom fans. Programmable humidity levels, fan duration, and a few different modes. Defaults are good enough if you don't want to program anything, just swap it in and watch it come up whenever you take a shower. Single button press to turn it on/off of course. Just enough smarts!

Take the time to set it up for your humidity levels and it works great. My girls are always forgetting to turn the fan on or off, this turn on and keeps the fan on until the moisture is gone, then it turns off so it's not wasting electricity.

Very well made and the sensitivity is spot-on. I have 3 of these in master bathroom, guest bathroom, and laundry room. All has been functioning well within the expectation. I feel relieved now when we have guests stay over and forgot to turn on the fan when they shower.