Humidity Sensor Switch For Ventilation Fans Auto On When Humid With 20 Minute Run Time No Brainer Energy Saver For Bathrooms, Neutral Wire Required, UL Listed, White

Humidity sensing switch for bathroom fans (single-pack)
✔️ 120VAC, neutral-wire, 3 humidity presets, 20-minute cycle

Humidity-sensing control designed for bathroom exhaust fans. It detects ambient moisture and auto-activates the fan to reduce humidity, commonly used in bathrooms, laundry rooms, basements, and other damp spaces.

✅ Auto humidity activated operation detects excess humidity and turns the fan on.
✅ 20-minute fixed running cycle with 5-minute pause to prevent motor overheating.
✅ Manual ON/OFF bypass and auto-off behavior for high-humidity areas.
✅ 120VAC, max 3A fan load; neutral wire required; UL-listed; Title 24 and IECC 2021 compliant.

💡 What is a humidity sensor switch used for in home ventilation systems?

It provides handy automatic control of ventilation, saving energy and preventing moisture buildup.

• Automatically starts a fan when humidity crosses a set threshold.
• Maintains a fixed run cycle to ensure consistent ventilation.
• Requires a neutral wire and supports standard 120V fans.
• UL-listed and compliant with Title 24 and IECC 2021 for safe usage.