(Similar to)ALORAIR 120 PPD Wi-Fi Dehumidifier for Crawl Space, Basement, and Commercial Use, 2025 Energy Star APP Control, Auto-Defrost Crawlspace Dehumidifiers Sentinel HD55S Wifi is up for auction in Home & Kitchen. The current bid is $99.00, 86% below the $689.11 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.