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XactSense Humidity Sensor Switch (MS-HS3-WH) and 80 CFM Bathroom Exhaust Fan with Light and 1300-Watt Heater Combo

$210.95
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  • Automated humidity control prevents mold and mildew
  • Ventilation, light, and heat in one convenient unit
  • Quiet fan operation at 2.0 sones for peaceful use
  • View More Details

Items in this bundle (2)

  • XactSense Humidity Sensor Switch for Bathroom Exhaust Fans, 3 Amp, Single-Pole, White (MS-HS3-WH)
    $41.95

  • 80 CFM Ceiling Bathroom Exhaust Fan with Light and 1300-Watt Heater
    $169.00

Bundle Summary

Regular Price (2 items)

$210.95

Item Savings

Subtotal

$210.95

Taxes calculated at checkout

Total

$210.95

Product Details

XactSense Humidity Sensor Switch for Bathroom Exhaust Fans, 3 Amp, Single-Pole, White (MS-HS3-WH)

About This Product

Reduce moisture, mold and mildew in your bathroom with Lutron's XactSense Humidity Sensor Switch. The precision of the sensor allows for accuracy in responding to changes to humidity, automatically turning fans on and off to ensure your bathroom maintains optimal air quality and comfort. Say goodbye to mold, mildew, and excessive steam as Lutron's XactSense Humidity Sensor Switch helps maintain ideal humidity levels. Enjoy a more comfortable and pleasant bathroom experience by reducing dampness, stuffiness, and humidity. Additionally, save on energy costs with smart humidity control that optimizes your bathroom fan usage, ensuring it runs only when necessary. Compliment other Lutron devices, adding a touch of elegance to your bathroom. Rest assured knowing this sensor meets Title 24 and IECC 2021 standards, helping to meet energy and indoor air quality codes. This humidity sensor seamlessly integrates into any bathroom design. Plus, benefit from Lutron's 24/7 technical support ready to assist you with any questions or concerns. Upgrade your bathroom with Lutron's Humidity Sensor and experience the ultimate in comfort, efficiency, and style. Trust in Lutron's time tested performance and quality to enhance your living space.

Highlights

  • PRECISE HUMIDITY CONTROL: Lutron's XactSense Humidity Sensor Switch accurately responds to changes in humidity, automatically turning fans on and off to reduce moisture, mold and mildew
  • ADVANCED AND ELEGANT: Blend state-of-the-art technology with sleek, elegant design with Lutron's XactSense Humidity Sensor Switch
  • CLEANER AIR: Prevent mold, mildew, and excess steam by maintaining ideal humidity levels, promoting a healthier bathroom environment
  • ENHANCED COMFORT: Improved airflow reduces dampness, stuffiness, and humidity for a more comfortable bathroom
  • ENERGY EFFICIENT: Save on energy bills by making sure your bathroom fan only runs when needed
  • ENERGY CODE COMPLIANT: Meets title 24 and IECC 2021 standards, ensuring it adheres to the latest building codes
  • EASY INSTALLATION: Simple, straightforward installation process that fits into decorator-style wall plates upgrade your bathroom fan control in as little as 15 minutes, with no neutral wire required
  • VERSATILE DECORATOR DESIGN: Lutron's XactSense Humidity Sensor Switch matches other Lutron devices, allowing for limitless configurations
  • SUPPORT YOUR WAY: Lutron provides 24/7 technical support, as well as a step-by-step wiring wizard, installation videos, video assistance, and more
  • TECHNICAL DETAILS: Compatible with 3 amp fans, neutral wire is optional
  • INCLUDES: 1 XactSense Humidity Sensor Switch, wallplate sold separately
  • Lutron wiring wizard for installation help for dimmer switches, fan switches, 3 way switches
  • Click here to learn more about Eco Options and Energy Efficiency
  • Click here for more information on Electronic Recycling Programs

Product Information

Internet # 334623491

Model # MS-HS3-WH

Store SKU # 1013678489

Specifications

XactSense Humidity Sensor Switch for Bathroom Exhaust Fans, 3 Amp, Single-Pole, White (MS-HS3-WH)

Details

Brand/Model Compatibility

All Exhaust Ventilation Fans up to 3 Amp

Pack Size

1

Part/Accessory Type

Upgrade Kit

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

10 Years with Product Registration

Questions & Answers

The warranty sheet is a piece of crap. I'm sure it was designed to be confusing. Nowhere is a bathroom exhaust fan listed.
ByOct 11, 2026
1 Answer | 
Answer This Question

We are sorry for your frustrating experience with the information provided for your 765H80L model. This model offers a one-year parts warranty. If you need any assistance, please contact us directly via the Contact Us page on our website. We'll gladly try to help you more and answer any questions you may have.

By|Oct 12, 2026


    A 3-function switch is needed for this fixture on a dedicated 20-amp circuit Broan says use P3RW switch; however, it’s a 15-amp. If the 3 functions are used concurrently will the 20-amp circuit protect the switch & unit against a fire from starting?
    ByOct 11, 2026
    1 Answer | 
    Answer This Question

    Thank you for your question, Carrie. To ensure the safe and individual operation of all three functions (heater, fan, and light), a dedicated 20-amp circuit is required. A switch is not included with the 765H80L itself; however, our compatible [P3RW three-function switch] will operate each function individually and is rated for the load. The heater, at 1300 watts, draws approximately 11 amps, meaning 14-gauge wire is technically adequate for the internal wiring needs; all other functions require much less amperage. The maximum total load of all three functions running simultaneously is just under 15 amps, which is within the requirements for both the switch and 14-gauge wiring. However, this margin is quite close. If a room or vanity light happens to be on the same circuit, the possibility of tripping the circuit breaker increases. Therefore, we strongly advise using 12-gauge wiring from the 20A breaker to the switch box and then transitioning to 14-gauge wire(s) from the switches to the combination fan wires. Please be sure to check and comply with your local electrical codes, as some cities or jurisdictions may require 12-gauge wiring as a minimum for all kitchen and bathroom installations.

    By|Oct 12, 2026


      what is the contact information for Broan support team
      ByOct 9, 2026
      1 Answer | 
      Answer This Question

      Thank you for your question on the 765H80L. Our Product Expert Team can be reached at tech.support@broan.com.

      By|Oct 12, 2026


        What is the manufacturer model number for the damper/duct connector for this fan?
        ByOct 7, 2026
        1 Answer | 
        Answer This Question

        Hello Anna, Thank you for your question regarding the 765H80L heater, fan, and light unit. The damper/duct connector is part number S97014185.

        By|Oct 8, 2026


          Is the light bright enough for a 7x 10. Bathroom
          ByOct 1, 2026
          1 Answer | 
          Answer This Question

          Thank you for your question on the 765H80L. The bulb is not included with this model so you can select the brightness level you prefer. The bulb specification is an A19 shape, E26 base LED bulb rated up to 14 watts only.

          By|Oct 1, 2026


            What is the maximum straight line vent ducting length allowed for this model?
            BySep 24, 2026
            1 Answer | 
            Answer This Question

            Thank you for your question on the 765H80L. This model does not have a maximum run. We recommend the shortest straightest run possible. If an elbow is used, we recommend 2' of straight duct before or after any elbow. We do not recommend an elbow right off the housing.

            By|Sep 25, 2026


              Does this vent have to be vented to the outside?
              BySep 17, 2026
              1 Answer | 
              Answer This Question

              Thank you for your question regarding the 765H80L heater, fan, and light unit. Yes, the exhaust fan portion of this unit needs to be ducted to the outside.

              By|Sep 17, 2026


                Does the heat still comes on in the summer months?
                BySep 10, 2026
                2 Answers | 
                Answer This Question

                You would install a 3 switch Combo. One switch for lights, one switch for heat one switch for fan

                By|Sep 18, 2026

                  (1)

                  Hello Trevone, Thank you for your question regarding the 765H80L heater, fan, and light unit. The heater, fan, and light functions can be wired to separate wall switches to operate each function individually. When wired this way, you are able to control when the heater is used by the wall switch. This model requires a dedicated 20-amp circuit.

                  By|Sep 10, 2026


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                    Customer Reviews

                    4.2 out of 5

                    • 4.2 out of 868 reviews
                    • 52% recommend this product
                    Filter by:
                    Showing 1-10 of 868 reviews
                    Too noisy
                    I had it installed 2023. Heats up well, however the heater is a bit noisy. How can I clean the fan? The griddle is difficult to remove. Any ideas??
                    by
                    Response from BroanCustomerSupportAug 17, 2026
                    Hi Jary
                    Thank you for the 4-star review regarding model 765H80L! We are happy the heater is working well for your needs.
                    The grille can be removed for cleaning by first removing the light lens in the center. A flat blade screwdriver can help you gently pry out the lens if needed. Next, remove the light bulb. Behind he bulb is an acorn nut. Hold the metal light reflector with one hand and unscrew the acorn nut. This will allow you to remove the grille and reflector for cleaning. Thank you again for taking the time to share your feedback with us! Broan
                      Very simple to install, operate and works without even having to think about it ever again.
                      by
                      • Verified Purchase
                      Highly recommend for mildew problems
                      Very satisfied with this humidity sensing switch. We were replacing shower curtains every 4 months because of mildew build up. We would leave the bathroom and turn the fan off or not use it at all sometimes. I increased the sensitivity and now the fan turns on within a few minutes of a hot shower running, and its a good 10ft from the shower.
                      by
                        1 found this review helpful
                        It is build so poorly, and the sensor doesn't even pick humidity until the sensor itself is covered with shower vapors. Therefore replacing a switch with this is not a good solution, even at the highest sensitivity would not really deliver. I ended up returning it. Regular timer and done.
                        by
                        Response from lutronNov 10, 2025
                        Hello, and thank you for your feedback. We’re sorry to hear about the issues you experienced with the humidity sensor. Your input is valuable, and we’d love the opportunity to learn more and assist you further. If you have any questions or concerns, please don’t hesitate to reach out to us at customersatisfaction@lutron.com or give us a call at 1-844-LUTRON1. Our support team is available 24/7 and ready to help! lutron
                        • Verified Purchase
                        3 found this review helpful
                        This customer chose to rate the product and not provide text.
                        by
                        • Verified Purchase
                        Over pricing
                        I received this switch as a gift. It works properly and turns on when needed. However, the price is very, very high. This product should not be priced this way. It's simply a rip-off. There may be two of these switches available for this price. Even considering the 200% inflation. It's nothing special on this switch, such as a color screen and full adjustment. They just lost their conscience.
                        by
                        Response from lutronAug 5, 2025
                        Thank you for your feedback. Please know that Lutron takes pride in the quality of our products, from the components we use to the 100% end-of-line testing, to our dedicated 24/7 customer support team. Lutron is the #1 brand among lighting professionals whose reputations and businesses rely on quality products they can depend on to perform for years and years. If you have any questions about Lutron or our products, please reach out to our Customer Satisfaction team at customersatisfaction@lutron.com, or call us at 1-844-LUTRON1. We're here 24/7, so please call us anytime! lutron
                          6 found this review helpful
                          GREAT FOR CONTROLLING BATHROOM HUMIDITY!!!!
                          [This review was collected as part of a promotion.] This humidity sensor switch works great in my bathroom! My fiancé would occasionally forget to turn the exhaust fan on while showering, so this is super helpful!! It only took ten minutes to install. The sensor automatically turns the fan on when humidity levels rise. It also automatically shuts off once the humidity levels go back down. I worry about mold and mildew, especially in the bathroom. This sensor switch should help me avoid those issues!
                          by
                          This review is from Humidity Sensor Switch for Bathroom Exhaust Fans, 3 Amp, Single-Pole, White
                            Loved it
                            [This review was collected as part of a promotion.] Accuracy is great and the sensitivity is amazing in my opinion the instais fast and it durability so far o think the compatibility is good i think.
                            by
                            This review is from Humidity Sensor Switch for Bathroom Exhaust Fans, 3 Amp, Single-Pole, White
                              For the absent minded on humidity control
                              [This review was collected as part of a promotion.] We installed this Lutron Humidity switch in the guest bathroom primarily for the ones who forget to turn the exhaust fans on and off, and in the deep south, it can get hot and sticky extremely quickly and mold can thrive in the right situation . The switch itself seemed flimsy,not as solid as I would hope for, but I am hoping the functionality will override its cheap appearance and the solution to the occasional guest that forgets to turn the fan on and off.
                              by
                              This review is from Humidity Sensor Switch for Bathroom Exhaust Fans, 3 Amp, Single-Pole, White
                                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.
                                by
                                This review is from Humidity Sensor Switch for Bathroom Exhaust Fans, 3 Amp, Single-Pole, White
                                  Showing 1-10 of 868 reviews