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The FILTERSCAN WiFi Air Filter Monitor comes in two models:

  • battery-operated (Model FS-245-B). Uses 4 AA batteries (included) or a 120V adapter (optional)
  • 15-24V AC/DC powered (Model FS-245-C). Gets power from the HVAC auxiliary power supply. Only a licensed electrician should install the FS-245-C using proper electrical conduit.

Purchase CleanAlert Air System Efficiency Monitors


  • Takes the guesswork out of when to change the air filter, maximizing filter life
  • Reduces energy costs 
  • Prevents costly repairs caused by clogged air filters
  • Easy to install
  • Sends clog alerts to your smartphone or other Internet-connected device*
  • Provides on-demand reports on the remaining life of the air filter*

Both models come with one year of FREE AirFilterSentry Plus Notification Service. After the free trial period, homeowners can downgrade to AFS Basic service for free or renew their Plus service. The annual fee for Plus service is $15 for the first monitor and $7 for each additional monitor. Or they can purchase Plus service for the life of their monitor(s) for one-time fee of $100 per monitor. The difference between Basic and Plus service is outlined in the table below.

Feature Basic Plus
Local alerts
Alerts to one email address and/or text alerts to one smartphone  
Personalized alert messages
Can connect the monitor(s) to any HVAC contractor in the Pro Network
Remote software updates
Text alerts to up to three smartphones and/or email alerts to up to three email recipients  
Follow-up reminders if a clogged air filter is not replaced or serviced  
On-demand web-based reports of remaining filter life and monitor status  
Annual fee OR FREE First monitor: $15 
Additional monitors: $7 
First year is FREE.
Single Lifetime fee N/A $100 per monitor

Click below to purchase FILTERSCAN WiFi for yourself or for resale to your customers. Volume discounts are available. Contact us for details.

Purchase CleanAlert Air System Efficiency Monitors

FilterScan WiFi is currently only available for sale in the United States and Canada. If you are interested in becoming an authorized retailer in another country, please contact us.