The LUTRON Humidity Sensing Switch MS-HS3G-WH is a 120V electrical switch designed to automatically adjust its settings based on changes in humidity levels. Manufactured by Lutron, a reputable brand known for their innovative lighting control solutions, this switch is compatible with Lutron's smart home system. Made in Mexico, this humidity sensor switch provides a convenient and energy-efficient way to regulate lighting and electrical outlets in your home based on current moisture levels.