Replacement Humidistat Sensor for Willhi Controller

Genuine Replacement Probe for the Willhi Humidity Controller

💨 Always Free Shipping on All Products — No Hidden Costs!

Genuine replacement humidity sensor probe for the Willhi humidity controller. If your humidistat is reading incorrectly or not switching on and off properly, a fresh sensor probe is usually the fix.

⚠ Important — Check Your Model Before Ordering

• Due to a global chip shortage, older humidistat sensors are no longer available and will not work correctly with new models.

• If your humidistat has two small indicator lights under the LED labeled ‘work’ and ‘set’, we are not able to replace your sensor.

• Please check the product images to confirm whether your sensor is the old or new style before ordering. Questions about an older humidistat? Email John@thehouseofhydro.com before ordering.

📦 What’s Included

• 1x Replacement Humidity Sensor Probe (Willhi)

• Free U.S. Shipping on all orders

🔗 Pairs With

• Willhi Humidistat Controller – the controller this sensor fits

• Any House of Hydro Mist Maker Kit

⚠ Shipping Notes:

• ✅ Free Shipping within the USA on all products.

• 🌍 International orders may incur customs fees, not included in the purchase price.