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Overview

Model # DHS05-742 Store SKU # 1000804492

"Decora Humidity Sensor and Fan Control, single pole, 1/4 HP Motor, 300W LED/CFL, 600W Incandescent/Halogen, 400VA Magnetic Low Voltage, 400VA Electronic Low Voltage. Can be installed with or without a neutral wire, line and load wires are interchangeable, wallplate sold separately. Can be used to comply with the requirements of 2019 and 2022 California Title 24, Part 6, Indoor Air Quality and Mechanical Ventilation, 2019 and 2022 CALGREEN, Part II, Indoor Air Quality and Exhaust and meets requirements of ASHRAE 62.2 White"

  1. CONVENIENT automatically turns bath or ventilation fan on/off
  1. EASY TO INSTALL slim profile fits in most wallboxes
  1. FLEXIBLE can be installed with or without a neutral wire
  1. VERSATILE adjust settings without tools or the need to remove faceplate and wallplate
  1. PRACTICAL perfect for bathroom, basement, laundry room and spa
  1. Features an Air Cycle mode which automatically turns ON the ventilation fan for a set period of time and repeats the cycle hourly (eg. 20 minutes ON/40 minutes OFF each hour)

Specifications

Dimensions

Assembled Depth (in inches)
1.22
Assembled Height (in inches)
4.13
Assembled Weight (in lbs)
0.3
Assembled Width (in inches)
1.75
Packaged Depth (in inches)
3.5
Packaged Height (in inches)
1.96
Packaged Weight (In lbs)
0.37
Packaged Width (in inches)
5.81

Details

Application
Residential
Application
Alternating Current (AC)
Certified
Colour Family
White
Control Style
Multi-Location, Single Pole
Country of Origin
CN-China
Electrical Features
Programmable
Indoor/Outdoor
Indoor
Light Bulb Compatibility
Incandescent, LED
Material
Nylon
Maximum Amperage (Amps)
5
Number of Switches
1
Package Quantity
1
Smart Technology
No
Swatch Colour
White
Switch Type
Rocker
Voltage (volts)
120

Warranty / Certifications

5-Year Limited
Decora Humidity Sensor and Fan Control Switch Single Pole in WhiteLeviton Decora Humidity Sensor and Fan Control Switch Single Pole in White"Decora Humidity Sensor and Fan Control, single pole, 1/4 HP Motor, 300W LED/CFL, 600W Incandescent/Halogen, 400VA Magnetic Low Voltage, 400VA Electronic Low Voltage. Can be installed with or without a neutral wire, line and load wires are interchangeable, wallplate sold separately. Can be used to comply with the requirements of 2019 and 2022 California Title 24, Part 6, Indoor Air Quality and Mechanical Ventilation, 2019 and 2022 CALGREEN, Part II, Indoor Air Quality and Exhaust and meets requirements of ASHRAE 62.2 White"
Leviton
1000804492
Decora Humidity Sensor and Fan Control Switch Single Pole in White is rated 3.8 out of 5 by 245.
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Rated 4 out of 5 by from Almost perfect After making my home significantly more energy efficient, moisture became an issue. So, I switched out the regular switch with a "timer" switch in the main bathroom. It improved the situation. However, if the timer wasn't set sufficiently long enough, moisture was still a problem. So I added the decora humidity sensor. Now, the fan is controlled by both the timer and humidity sensor. I now have ZERO problems with moisture. The downside is that the humidity sensor may "randomly" go on for a few minutes occasionally... however, that is what the sensor is supposed to do.
Date published: 2017-02-27
Rated 5 out of 5 by from Love it, would definitely recommend I had this installed by an electrician when I had all of my outlets and switches updated. I lowered the sensitivity of the humidity so that it turns on by itself if I forget to. I set it for 30 minutes so that covers a shower and a bit afterwards to remove the moisture. I've had to lower the humidity sensor to find the right setting. Now it goes off when it gets to 60%. I have a humidity meter right above the sensor so I know that it is at an accurate sensitivity. one con.... I agree with a couple of other reviewers that the plate seems flimsy and I would be afraid to snap it if I had to make more than a few adjustments. I've found the perfect balance after 3 adjustments, and I'm glad I didn't break the cover.
Date published: 2017-06-13
Rated 5 out of 5 by from Exactly as advertised. Great Been using this now for 5 weeks in my renovated bathroom. Perfect!! Easy to install, really. Uses existing wiring on a retrofit. No modifications needed. Just as simple on a rewire. Works like a charm. Programmable to meet just about any need but I found the factory setting perfect for my application. From the package to working fan in less than 15 minutes. If your fan is working well this is all you need to make it humidity sensitive, or as a timer (both actually). If you need a new fan, this work perfectly too. Truly, this was the best value of all the reno parts I bought for the new bathroom.
Date published: 2018-07-08
Rated 5 out of 5 by from Excellent performance I have been using this in a bathroom for several years because no one would ever turn the fan on. It has performed very well and I am glad it continues to work. I am renovating another bathroom and have already purchased a new one for that.
Date published: 2021-06-03
Rated 5 out of 5 by from Good to install it it works good and auto turn the bathroom fan on when humidity
Date published: 2020-08-19
Rated 1 out of 5 by from Got a lemon This sensor switch I got must be defective. The sensor detects humidity when there is none. It's winter in the Okanagan and the barometer reads Very Dry. Yet this sensor will toggle the fan on constantly, even though I have turned Sensitivity all the way down and the Humidistat all the way up. Not only that, but the Timer setting is in its default position, "10 minutes", yet I have not yet seen it cycle itself off after 15+ minutes of operation. The whole thing must be pooched. I'm going to try returning it to home depot, if that doesn't work I'll check with Leviton. We have a DewStop in the other bathroom and it works perfectly fine. I am hoping since I couldn't find another one of those, I can find a replacement for this Leviton switch that actually works. If so I will update my review. Otherwise, I recommend the DewStop version.
Date published: 2022-02-04
Rated 2 out of 5 by from Humidity Sensor not working? Easy to install. The automatic on/off works fine. The air cycle mode works fine too. I'm not sure the automatic on/off with set humidity points work. I have a humidity sensor set up in the crawl space in which the wireless monitor shows 60 or more %rh...I've set the set point to approx 50 but the fan does not seem to go on. Not sure if it is a defective unit or not!
Date published: 2019-05-20
Rated 5 out of 5 by from Useful and helpful Easy to install and the default setting works great to clear the bathroom of mists and fog whenever it’s needed. No need to remember to turn on the fan now; just wish it could detect odours too.
Date published: 2022-08-19
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I'd like this to be set to turn on automatically when humidity is detected, but is there a way to manually turn it on as well when there's no humidity?

Asked by: Bob28
Yes, just push the button and it will turn on.
Answered by: Catherine
Date published: 2021-07-27

At what humidity does the switch turn on. I am wondering if I can use it in the basement for turning my dehumidifier on and off?

Asked by: wanderer
A sensitivity level adjustment allows users to adjust the sensor’s sensitivity to desired humidity level. If you require any further assistance, please contact our technical support at 1-800-824-3005.
Answered by: levitonProductExpert
Date published: 2021-06-28

I've read the manual. If the set point triggers (humidistat + high sensitivity) the fan will come on for the set interval, say 45 minutes. If the humidity is sustained, how long before the humidistat can turn the fan back on for another cycle?

Asked by: A Canuckian engineer
Thank you Leviton rep, but my question assumed that the fan was turned on because the humidity was high. But the X minutes (assuming the maximum of 45) is *insufficient* to get the humidity low enough. After X minutes, it will turn the fan off. But given that the humidity is still high, will it *immediately* start another cycle for X minutes, or is there a delay before it goes again? Put another way: In your answer, you said the fan will run for X minutes until the RH is less than the setting. But if X minutes is not enough, will it *ignore* the X minutes and keep running all day if the RH is still high? Or will it shut off, then start again after some sort of delay? Thank you
Answered by: A Canuckian engineer
Date published: 2022-06-14

Will this work for apartment dehumidifying system?  There is an old Ranco manual relative humidity control in place. Can the level of humidity be set instead of time?

Asked by: Aotm
Not sure about the first question as it would depend on the existing control wiring configuration. The humidity level can be adjusted from 20-80%.
Answered by: Drew
Date published: 2022-11-16

I would like to use this switch to control bathroom exhaust via the HRV instead of venting directly outdoors with a 120vac fan. Can this control work on the 24vac control circuit? Will the lower voltage affect the humidity sensor? Thank you.

Asked by: RonF
Thank you for your patience!. This product will not work for a 24v circuit. I would recommend calling our technical support desk at 1-800-824-3005, option #5 and they will be able to guide you with a more appropriate alternative.
Answered by: levitonProductExpert
Date published: 2024-01-04
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