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The FILTERSCAN WiFi® Home affordable airflow sensor and differential pressure monitor sends you a text or email when it's time to change your home's air furnace filter.

    Your Air Filter Just Got Smarter



    For many of us, changing air filters is an easily forgettable chore.

    Our FILTERSCAN® air filter monitor removes the guesswork through an indicator light on the unit when the filter becomes clogged.

    Now you can enjoy cleaner air, lower electric bills and an efficiently operating HVAC system.


    With the launch our FILTERSCAN® WiFi Home unit, we are delighted to share a special sale price on our non-WiFi and Wireless Receiver products. Enjoy optimal indoor air quality in your home!

    Non-wifi units for sale:


    Units with Wireless Receiver:


    How it Works

    Indoor Air Quality Effects Your Health


    Monitoring the efficienty of your home air filter is an extremely worthwhile thing to do since a clean air filter can help prevent allergic reactions and ensure the air you breathe is as pure as possible.

    For those with severe allergies or asthma, this is an especially important consideration. Clearly, it is vital that we all understand how best to clean the air that we breathe, and among the easiest ways to accomplish this is to regularly replace your heating/cooling system air filter.

    Read About Indoor Air Quality From Our Blog

     Learn More About Indoor Air Quality

    1. Automatic monitoring of your HVAC air filter

    2. Compatible with a wide variety of air filters and with single and multi-speed HVAC blower systems

    3. Text and/or email alerts on any Internet-connected smartphone or desktop or tablet. 

    4. On-demand reports of the state of your air filter from anywhere on any Internet-connected device when you upgrade to AirFilterSentry Plus Notification Service

    5. Battery-powered (batteries included) or 6V wall adapter (optional). 


    The AirFilterSentry Notification Service that allows the FILTERSCAN® WiFi Home to communicate with you, either via email or phone text.

    It uses a cloud database server, to send alerts to any smartphone, laptop or tablet.

    All you have to do is to sign up online for AirFilterSentry Notification service at www.cleanalertwifi.com.

    Even better, the AirFilter Sentry Basic Notification Service is entirely FREE!*

    *Personalized reporting for up to two FILTERSCAN® WiFi Home units now included FREE of charge.