Keeping your crawl space clean and dry is crucial for maintaining high-quality indoor air throughout your entire home. You no more worrying about a damp, messy crawl space with use our dehumidistat controller, it can automatically turn on your ventilators or fans when the humidity ...Keeping your crawl space clean and dry is crucial for maintaining high-quality indoor air throughout your entire home. You no more worrying about a damp, messy crawl space with use our dehumidistat controller, it can automatically turn on your ventilators or fans when the humidity rises above set % to prevent growth and wood rot, automatically turn off below the set %, giving you peace of mind