AlorAir Sentinel HD55S 120 PPD Crawl Space Dehumidifier
Best price now
$486.49at WalmartChecked 51 min ago
25% under what the other stores charge
Compared across 7 stores. Prices are checked against each store and labelled with when.
25% under what the other stores charge
Compared across 7 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Sentinel HD55S is a compact commercial-grade dehumidifier built for crawl spaces, basements and small job sites. It removes up to 120 pints per day at saturation (55 pints at AHAM standard) and covers roughly 1,300 square feet, with a MERV-8 filter and R32 refrigerant. Its low-profile metal cabinet fits between joists, and it drains by gravity, so no pump is needed if you can route a hose downhill. Against rivals like the AlorAir Sentinel HDi65 or Santa Fe Compact70, it trades some capacity and low-temperature performance for a smaller footprint and simpler setup. Owners like the build and the ducting options but report a noisy fan and mixed long-term reliability.
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Lowest price we've seen: $486.49 on Nov 11 at Walmart. Tracked across 6 stores since Nov 11.
Owners praise the compact metal build and the moisture it pulls from damp crawl spaces, and many like that it drains by gravity without a pump.
The AlorAir Sentinel HD55S is a compact, commercial-grade dehumidifier designed for crawl spaces, basements and commercial spaces. It removes up to 120 pints of water from the air per day at saturation, or 55 pints per day under the AHAM test standard. It works in areas up to 1,300 square feet.
It has a MERV-8 filter and drains by gravity. It operates in temperatures from 33.8 to 104°F and in humidity from 36% to 90%.
