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RadonAway RSA1 Radon System Alarm

SKU: 28535
Watch our RSA1 Radon Alarm Video under the 'Details' tab below.
The RadonAway RSA1 Radon System Alarm is a vacuum monitoring device utilizing piezoresistive pressure sensor (PPS) technology. This alarm provides audible and visual indication to alert the homeowner when the radon system is not moving sufficient air. Patent pending.

- Satisfies the current ANSI/AARST Radon Mitigation Standards.
- Warranty Details below (Details tab).

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Availability: In stock

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Downloadable Specifications (PDF format)
Warranty Information as of 2/19/21 (PDF format)
Watch Installation Video

RSA1 Radon System Alarm

RadonAway RSA1 Radon System Alarm Features:

  • For use on 2", 3", 4", 6" Pipe or Flat Surface
  • Vacuum Sensing
  • Battery operated; battery included (life of 2-3 yrs)
  • Visual and Audible Indicators
  • Alarm and Service Delay Functions
  • Hush and Test Buttons
  • Pipe or Wall Mount
  • Easy to Install
  • Satisfies the current ANSI/AARST Radon Mitigation Standards

RadonAway RSA1 Radon System Alarm Sensing Modes:

Sensing Mode (Normal Operation)
Sensing light blinks at 60 second intervals (3 flashes).

Test Mode
Audible "beep" sounds and all lights illuminate when "Test" button is pressed.

Pre-Alarm / Alarm Mode
Triggered by a >90% reduction in pressure. After 48 hours (pre-alarm interval), monitor beeps and alarm light flashes- then no light or beep for 60 seconds- then repeat until "Hush" is pressed or system is serviced.

Hush Mode
Stops alarm or service mode sound for 7 days but visual indicator remains as programmed; after 7 days returns to sensing mode, alarm mode (with sound) or service mode (with sound).

Low Battery Mode
Battery voltage drops below 3.3V; 1 "chirp" and simultaneous flash at 5 minute intervals then stops for 5 minutes then repeats until battery drains or new battery installed.

Service Mode
If 3 pre-alarm conditions occur within a 48 hour timeframe, monitor beeps and alarm light flashes then no light or beep for 60 seconds, then repeats until "Hush" is pressed or system is serviced.

Additional Info

Additional Info

SKU 28535
Pack Size Each
Lead time 90


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  1. All sales are subject to the terms and conditions hereof. No modifications or additions thereto shall be binding on Seller, unless consented to in writing signed by Seller's duly authorized representative.

  2. With respect to goods manufactured and sold by Seller, such goods sold hereunder are warranted to be free from defects in material and workmanship. Seller will repair or replace, without charge, any goods proven defective.

  3. With respect to goods distributed by Seller, but not manufactured by Seller, the Seller will accept returns on all such goods for a period of thirty days from the date of sale. Thereafter, all such goods must be returned to the  manufacturer of the goods by the buyer, under the specific terms of the manufacturer's warranty unless the manufacturer has designated the Seller  as  an  agent  of  the manufacturer for warranty purposes.
For the remainder of the Sales Terms and Conditions, please see the Sales Terms & Conditions page.