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ALORAIR Basement/Crawl Space Dehumidifiers Removal 120PPD (Saturation), 55 Pint Commercial Dehumidifier, Energy Star Listed, 5 Years Warranty, Auto Defrosting, cETL, Optional Remote Monitoring

Model : Sentinel HD55

4.9 Average

$628.00 List Price: $1,200.00

Moisture Removal Capacity (115V/60Hz): 55 Pints/Day@AHAM (80°F-60%)
120 Pints/Day@saturation (90°F,90%)
Draining Mode: Gravity Draining

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SAVES YOU MONEY: Since it is Energy-Star rated, this dehumidifier will quickly remove moisture from the air without running up your utility bill. Energy Star appliances are not just better for the environment, they also cost 30% less to operate compared to non-Energy Star appliances.

Moisture remains the greatest threat to your home’s structural integrity. Increased humidity levels indoors can cause the growth of mold and mildew and an increase in dust mites. These are known allergens that cause respiratory problems and asthma. This is why need to invest in a dehumidifier today.

Key features

  • Compact and Smallest Size.
  • HVAC Remote System.
  • Automatic Defrosting System.
  • Ducting options for focus dehumidification.
  • Compatible with Remote Control.  (Notice: sold separately)
  • Rare earth alloy Tube Evaporator
  • Engineered for low-temperature operation and the airflow issues like the crawl space or attic.
  • Multiple quality certifications.


The Sentinel HD55 is built small compact and portable ideal for tight space dehumidification. With the patent for invention protected. This unit has CE, ETL, Energy Star certification.

The Sentinel HD55 has a wide range of applications including :

  • Crawlspaces.
  • Basements.
  • Storage areas.
  • Offices.
  • Warehouses.
  • Factories.
  • Bars.
  • Restaurants.
  • Museums.
  • Laboratories.
  • Laundry.


All-purpose use

  • Capacity. - The Sentinel HD55 removes at least 55 pints of water per day(AHAM) drawing only 4.1 amps. It is also energy efficient able to remove 2.4L/kWh consumed. Able to control humidity to a space of up to 1,300 sq. ft.
  • Performance.
  • Warranty – The Sentinel HD55 has an extended 5 years warranty. At Alorair we ensure that all out Sentinel HD55 units are built to meet the highest levels of quality and durability. Every unit is thoroughly tested and proven to be 100% functional before leaving the warehouse.
  • Support - All our customers enjoy efficient support, thanks to your technical support team via phone, email, or via live support. This ensures that all our customers receive the help they need whenever they encounter any challenges while operating the Sentinel HD55.

Power 115V/60HZ
Current(115v/60Hz) 4.1A
COP(115v/60Hz) 2.4L/Kwh
Size For Up to 1,300 sq.ft.
Filter MERV-8 Filter
Air flow 130 CFM,230 CMH
Sound Pressure Level <52 DBA
Refrigerant R410A
Feet Adjustable Feet
Draining Gravity Draining
Defrosting Control system Automatic Defrosting
Functioning perature Range 33.8-105℉
Capacity115V(80ºF-60%)) 55Pints
Weight 57Ibs
Dim(LxWxH) 19.2X12.2X13.3in
Loading quantity 40”HQ :792Sets

Ratings Summary

98% Recommend this product of 80 responses

80 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN % Complete
2 Stars
NAN% Complete
1 Stars
NAN% Complete
Total: 80 Reviews
Reliable and quiet
By 'Shae Reilly ', Reviewed on 2021-02-22 10:47:37
It is very quiet and efficient. Easy to install anywhere. The drain pipe is not very long, so it is restricted when used. I use it in the basement. Surprised how much moisture this machine absorbs from the air! I am very satisfied with this product and would definitely recommend it. We have not encountered any problems. I will buy this model/brand again.
Overall a good unit
By 'Maximus Thorpe ', Reviewed on 2021-02-07 10:56:46
This dehumidifier does a very good job of keeping the small basement dry! Compared with our previous ones, it is so small, compact and quiet, which surprised me. This unit has been working in the basement for several months, and our basement no longer smells of humidity! Highly recommend!
Great product!
By 'Roberto Gallagher ', Reviewed on 2021-02-01 13:33:18
Excellent quality, very compact and quiet. I purchased this product based on all reviews. I have been running this dehumidifier in the basement for several months and it helps to keep the entire basement (about 900 square feet) of moisture. I am very happy about this. I am very satisfied with my purchase and would recommend it to others.
The machine works well
By 'Korey Luna ', Reviewed on 2021-01-25 14:04:06
The effect of this dehumidifier is very good. We use it in a 1000 square foot basement. It does a great job. We have been running this machine almost all the time and it has not caused us any problems. Even at low temperatures, the automatic defrosting system of this unit can make it work well. Overall, we are very satisfied with this product, and it is much cheaper than other products that perform the same function.
Great product
By 'Jerry Boyle ', Reviewed on 2021-01-18 11:33:59
I really like this dehumidifier. It eliminates a lot of moisture in my basement. I have many dehumidifiers, but this is definitely the best I have ever bought. As long as it keeps working as it has in the past few months, I will be very happy. I actually think I will buy another one. Great product!
great! love it!
By 'Frankie Alvarez ', Reviewed on 2021-01-11 13:39:24
The best dehumidifier I have ever used. I have a 1,200 square foot basement, and this thing is the champion. Before purchasing this dehumidifier, I didn't think it would lower my electronic bill. In fact, it saves energy costs. I am very happy with this purchase. highly recommended.
High-quality Energy Star products
By 'Matthias Wicks ', Reviewed on 2021-01-04 11:03:57
Sentinel HD55 dehumidifier is the best dehumidifier in our basement! It is easy to use and can accomplish the expected work. My basement does not exceed 1500 square feet, and I am glad I chose this size. And since this is an ENERGY STAR product, we have also noticed a drop in electricity bills.
Win-win in both price and effect
By 'Mathew Gardiner ', Reviewed on 2020-12-28 10:52:10
I have been looking for a dehumidifier for several months, and when I saw this product and price, I thought I would take the opportunity. I am very satisfied with this product. It works well when we use it on a 1,100 square foot area. It is easy to empty and very quiet. I would definitely recommend this product.
I am very happy that I purchased this machine!
By 'Lilian Morton ', Reviewed on 2020-12-21 13:12:46
I hate leaks in basement pipes, which make the basement wet and easy to mold. My neighbor suggested that I buy a dehumidifier to solve my problem. This thing greatly helps us reduce the humidity and moisture in the basement. I would definitely recommend this brand. It has some extraordinary features. The important thing is that it is quiet.
Good product
By 'Akeel Whyte ', Reviewed on 2020-12-14 09:12:36
I don’t know what should I do without this Sentinel HD55 dehumidifier! Unless you get one of them, you will never know how much moisture is in your home/residence or office! It does not take up much space and is relatively quiet. It has the functions I expect. Therefore, if you have a demand for such products, I will definitely recommend it to you.


Questions & Answers

1 Answer

Answered by Alorair
Hello, when you want to store this machine, you must comply with the following regulations. • Turn off the dehumidifier and let it dry. • The power code should be packed and fixed. • The filter should be protected by covering. • Make sure to store the equipment in a clean and dry place. Thanks for your question!
Answered by Alorair
Hello, when you want to turn off the unit, please use the remote control or turn it off on the device switch. Avoid using the power switch to turn it off. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier is equipped with a rare earth alloy tube evaporator. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier is equipped with a rotary compressor. Thanks for your question!
What is the power of this dehumidifier?

Arnas on 2021-01-19 15:07:16

1 Answer

Answered by Alorair
Hello, the power of the Sentinel HD55 dehumidifier is 115V / 60 Hz. Thanks for your question!
Does the dehumidifier automatically defrost?

Tarik on 2021-01-12 14:18:55

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier has an automatic defrost system, which ensures that the ice is quickly removed from the coil when the operating temperature is 33°F. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier has been equipped with filters to protect the internal components from dust and other particles, thus ensuring efficient operation and long-term use. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the working humidity range of the Sentinel HD55 dehumidifier is between 35% and 90%. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the Sentinel HD55 dehumidifier is equipped with a humidity regulator. When the humidity exceeds the set point, it starts to dehumidify. Thanks for your question!

1 Answer

Answered by Alorair
Hello, the working temperature range of the Sentinel HD55 dehumidifier is between 33.8°F~105°F. Thanks for your question!

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