

Lutron MS-HS3-WH Maestro Xactsense Humidity Sensor Switch, 3A Fan/Light, Neutral Or Ground
Key item features
- Lutron MS-HS3-WH
- Maestro Collection
- Ceiling Fan Accessories
- White
Specs
- Light dimmer & switch typeSingle-pole Dimmers
- Smart techY
- BrandLutron
- ColorWhite
- FeaturesAdjustable, Automatic
- Volts120 V
How do you want your item?
About this item
Product details
Introducing Lutron’s first-ever Humidity Sensor Switch, offering a bathroom solution that you and your homeowners can be proud of. This state-of-the-art device detects humidity levels to activate the exhaust fan when needed, reducing moisture, mildew, and mold in any bathroom space. The device is compatible with a 3 A, 1/10 HP fan, as well as a 3 A combined fan and light. Showcasing our commitment to quality and innovation, the XACT Sense Humidity Sensor Switch measures humidity levels and uses advanced signal processing to determine the optimal time to activate the fan. This new humidity-sensing feature provides added convenience and allows consumers to adjust how long the fan will stay on once activated. This low-effort, high-impact remodel delivers a simple yet innovative solution for homeowners, minimizing energy consumption and maximizing efficiency. Coordinates perfectly with Lutron Claro wall plates for consistent color matching (wall plates sold separately).
Features:
- Includes (1) XACT Sense Humidity Sensor Switch
- 3A 1/10 HP Fan or 3A fan/light combination; 120V
- Neutral or ground connection required; Single Pole
- Automatically turns the fan on and off when humidity is detected, reducing moisture, mold & mildew
- Adjustable timeout up to 45 minutes (5, 15, 30, or 45)
- Select between 3 Modes: Shower + Climate, Shower Only, or Air Cycle
- Adjustable relative humidity threshold and sensitivity. Many user adjustable settings to adapt to your specific application.
- Smart Ambient Light Detection prevents fan from operating when the space is dark
- Complies with California Title 24
Dimensions:
- Height: 5-1/8"
- Width: 2-1/4"
- Product Weight: 0.35 lbs
Electrical Specifications:
- Amperage: 5
- Voltage: 120
- Lutron MS-HS3-WH
- Maestro Collection
- Ceiling Fan Accessories
- White
Specifications
Light dimmer & switch type
Smart tech
Brand
Color
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Customer ratings & reviews
Customer photos






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Showing 1-3 of 44 reviews
Convenient. Fan turns on when to much moisture is
[This review was collected as part of a promotion.] I received this Lutron humidity sensor switch for my bathroom exhaust fan from Influenster. It took roughly 25 minutes for installation. Was pretty straight forward with the instructions provided. The switch is very convenient to reduce moisture and to prevent mold from growing. The switch comes with a moisture sensor level button you will want to set before attaching to cover back to the wall.
Convenient to use, easy to install!
[This review was collected as part of a promotion.] This XactSense Humidity Sensor Switch from Lutron has been a useful addition to our main bathroom. Our exhaust fan is on it's own switch, and this XactSense humidity sensor is able to automatically control the ventilation based on humidity levels, making for a convenient solution for keeping moisture under control. Installation the switch was straightforward, but I recommend hiring a professional if you are uncomfortable with electrical work. This switch does not require a neutral wire, which is nice for those without one available. The humidity sensor quickly responds to rising humidity levels to turn on the exhaust fan, and turns if off after a user-selectable timeout setting. You are able to easily adjust the timeout period as well as manually override operation to turn on your exhaust fan. I like how this switch automatically turns the exhaust fan on and off, without any user input. Overall, I recommend this humidity sensor switch for anyone wanting to simplify operation of their bathroom exhaust fan. It has been extremely convenient, and has even saved energy as we no longer need to remember to turn the exhaust vent off.
Easy install, great addition to our exhaust fans!
[This review was collected as part of a promotion.] This product was super easy to install and has provided good information in our bathroom! It was very compatible with the switch we already had. We have a small bathroom with not a lot of air flow and this helps us track the possibility of mold exposure.














