AlorAir Sentinel HD55S WiFi
A connected 55 PPD AHAM-class crawl-space unit for users who value remote monitoring. Its 120-pint headline is a saturation rating, so the 55 PPD figure is the better number for normalized comparison.
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- Crawl spaces around the manufacturer’s published 1,300 sq ft range
- Owners who want Wi-Fi monitoring and control
- Gravity-drain installations with moderate capacity needs
- You need a built-in pump
- You are choosing it mainly because of the 120-pint headline
- Your crawl space needs substantially more than a 55 PPD normalized class
Compare capacities under the same test condition
CrawlClimate uses the 80°F / 60% RH figure as the primary comparison value when the manufacturer publishes it. Saturation figures are kept separate because they are measured under much warmer, wetter conditions.
What stands out
- 55 PPD AHAM / 120 PPD saturation ratings are clearly published
- Wi-Fi app control
- 130 CFM airflow and automatic defrost
Potential limitations
- Gravity-drain configuration
- MERV-1 filtration is basic
- Marketing emphasizes 120 PPD even though 55 PPD is the comparable AHAM figure
Before you order
Plan for a continuous gravity-drain route. Wi-Fi can make monitoring easier after the unit is placed in a difficult-to-access crawl space. Periodic physical drain and filter checks are still part of normal maintenance.
Read installation guides →Specifications
Similar-capacity alternatives
Sources & testing status
This page is currently labeled Specification research. The specifications come from published sources; any future CrawlClimate hands-on testing will be labeled separately.