Simple. Dependable. Built like a tank.

Audible radon alarm continuously monitors system pressure to alert occupants of fan failure or system blockage. Battery lasts up to 10 years. Battery INCLUDED but not pictured.

To check battery level, activate the low battery feature by momentarily pressing the test button. If alarm sounds weak or not as loud as desired, simply replace battery. External battery mount makes replacement a snap when needed.

Longest lasting battery alarm in the industry. Now includes (1) 10 Year Battery at no extra cost! (Not pictured).

On Sale! Originally $79.95 - Save over $30

(Note: For additional photos, click image on left.)

Same great features as our standard 9-Volt alarm but includes our built-in RSA Flow Meter. Easy to read and shows any system changes immediately as they occur. Flow meter uses no electricity so does not drain battery. Battery INCLUDED but not pictured. RSA Flow Meters are very accurate and unlike u-tube manometers won’t leak, spill, fade or evaporate!

Longest lasting battery powered alarm in the industry. Now includes (1) 10 Year Battery at no extra cost! (Not pictured)

On Sale! Originally $99.95 - Save over $40

(Note: For additional photos, click image on left.)

Please note that this unit and our Plug-In Deluxe are the only 2 radon system alarms available anywhere that actually meet all ANSI/AARST Standards. All other alarms require the addition of a flow meter or some type of manometer to comply.

Classic. Unsurpassed reliability.

Audible AND visual alarm continuously monitors system pressure to alert occupants of fan failure or system blockage. Easy to see green LED shows radon system is working as intended. Red LED and audible alarm activates when radon fan fails or a restriction in the system is identified. All plug-in models include our UL Listed, Energy Star Level VI with extra long 8’ power cord. (Need to reach an outlet far away? Our optional low voltage extension cord is only $12 and reaches an additional 32 feet!)

On Sale! Originally $99.95 - Save over $30

(Note: For additional photos, click image on left.)

Same great features as our standard plug-in alarm but includes our built-in RSA Flow Meter. Easy to read and shows any system changes immediately as they occur. RSA Flow Meters use no electricity, are very accurate and unlike u-tube manometers won’t leak, spill, fade or evaporate!

On Sale! Originally $119.95 - Save over $40

(Note: For additional photos, click image on left.)

Please note that this unit and our 9-Volt Deluxe are the only 2 radon system alarms available anywhere that genuinely meet all ANSI/AARST Standards. All others require the addition of a flow meter or some type of manometer to comply.

Easy to read. Adjustable for all types of radon mitigation systems, high or low pressure or flow. Shows all measurable system changes immediately as they occur. RSA Flow Meters are very accurate and unlike u-tube manometers won’t leak, spill, fade or evaporate!

On Sale! Originally $19.95 - Save Over $7.00!