About This Compatibility: Compatible with 400/500/600/700 series evaporative humidifiers and 800 series steam humidifiers, ensuring broad compatibility Adjustment: Easily adjust your home's relative humidity with the manual digital control, ensuring indoor humidity matches outdoor temperatures Installation: Choose between wall mounting or duct mounting near your HVAC equipment. The simplified installation process requires no polarity concerns and is suitable for 2-wire systems, allowing users to quickly replace the old humidifier controller Prevention: Prevents window condensation & dry air, manually set the ideal humidity level based on outdoor temperature to effectively stop condensation on windows and walls in winter, while alleviating dry skin and static electricity. Design: Designed for low voltage (24VAC) operation to effectively control humidification equipment Overview Brand : Dicsley Special Feature : Adjustable Humidity Control Color : white Product Dimensions : 0.83"D x 5.12"W x 3.03"H Item Weight : 0.66 Pounds