Lutron MS-HS3-WH XactSense Humidity Sensor Switch - 3A Fan/Light, Single-Pole, White

Lutron MS-HS3-WH XactSense Humidity Sensor Switch

The MS-HS3-WH is a Lutron XactSense humidity sensor switch in white designed for intelligent exhaust fan control in bathrooms and damp spaces. Experience superior comfort and energy efficiency with advanced digital signal processing that precisely detects both sudden and gradual humidity changes while filtering out environmental variations. This single-pole control features adjustable timeout settings, multiple operating modes, and optional ambient light detection—ideal for bathrooms, shower rooms, laundry rooms, and utility spaces requiring automated moisture management.

Lutron MS-HS3-WH Features

• Advanced Digital Signal Processing: Detects rapid humidity changes from showers and gradual changes from environmental conditions while filtering out typical variations
• XactSense Humidity Detection: Precisely measures humidity levels and uses advanced signal processing to determine when to activate the fan
• Adjustable Timeout Options: Choose from 5, 15, 30, or 45 minute time delays to match your ventilation needs
• Adjustable Sensitivity Settings: Four sensitivity levels (High, Medium High, Medium Low, Low) for rapid humidity changes in damp spaces
• Adjustable Climate Threshold: Three relative humidity threshold settings (50%, 60%, 70%, 80% default) to limit humidity levels in the space
• Multiple Operating Modes: Shower + Climate mode for bathrooms, Shower Only for quick response, or Air Cycle for utility rooms with hourly circulation
• Ambient Light Detection (ALD): Optional feature prevents fan from turning on when bathroom is dark and unoccupied (High, Medium, Low, Disabled settings)
• Manual Override: Ability to override and turn fan ON or OFF indefinitely regardless of humidity levels
• Dual-Load Capacity: Controls 3A 1/10 HP fan or 3A combined exhaust fan and light
• Patterned Grille Design: Allows accurate humidity sensing while maintaining clean, professional appearance
• Coordinates with Diva Dimmer: Pairs with Diva dimmers and Night Mode controls for consistent aesthetic
• Single-Pole Configuration: Standard single-location wiring for straightforward installation
• Neutral or Ground Wire Required: Requires neutral or ground connection for sensor operation
• Gloss White Finish: Premium gloss white finish coordinates with Lutron wallplates
• UL Listed & Code Compliant: Meets U.S. and Canadian safety requirements, California Title 24, IECC, and ICC/ANSI A117.1 requirements

XactSense Humidity Sensor Applications

• Residential bathrooms and powder rooms
• Master bathroom suites with showers and tubs
• Basement bathrooms and moisture-prone areas
• Laundry rooms and utility spaces
• Home spas and steam rooms
• Guest bathrooms and en-suite facilities
• Multi-family residential units
• Light commercial restrooms

Installation & Operation

The Lutron MS-HS3-WH installs in a standard single-gang wallbox with neutral or ground wire connection required. Select your operating mode: Shower + Climate (activates on rapid or gradual humidity increase), Shower Only (rapid increase only), or Air Cycle (hourly circulation for utility rooms). Adjust timeout (5-45 minutes), sensitivity (4 levels), and climate threshold (50-80% RH) using front-accessible controls. Enable Ambient Light Detection to prevent nighttime operation when the bathroom is unoccupied. Use manual override for immediate control when needed.

Compatible Loads & Specifications

• Fan Load: 3A 1/10 HP fan or 3A combined exhaust fan and light
• Voltage Rating: 120V AC, 50/60 Hz
• Timeout Options: 5, 15, 30, or 45 minutes (adjustable)
• Sensitivity Settings: High, Medium High, Medium Low (default), Low
• Climate Threshold: 50%, 60%, 70%, 80% (default) relative humidity
• Operating Modes: Shower + Climate, Shower Only, Air Cycle
• Ambient Light Detection: High, Medium (default), Low, Disabled
• Wiring: Single-pole configuration, neutral or ground wire required
• Dimensions: 4.1" tall x 1.7" wide x 1.4" deep (without wall plate)
• Warranty: 10 years with product registration

Why Choose Lutron XactSense Humidity Sensors

Lutron is the world leader in lighting control with over 60 years of innovation and excellence. The XactSense MS-HS3-WH features advanced digital signal processing that accurately distinguishes between rapid shower-induced humidity and gradual environmental changes, delivering reliable performance across diverse climates while reducing energy waste. Rigorously tested for professional-grade reliability, this intelligent sensor offers unmatched flexibility with three operating modes, four sensitivity levels, adjustable climate thresholds, and optional ambient light detection. With UL listing, California Title 24 and IECC compliance, coordinated Diva design, and a 10-year warranty with product registration, the MS-HS3-WH provides superior humidity control for residential and light commercial applications.

Why Buy From Us: As an authorized Lutron dealer, we guarantee 100% genuine products with full manufacturer warranty and expert customer support.