Installation Guide
16 
  WPA2-PSK (AES) 
  WPA-PSK mixed mode (some access points, not all are supported) 
For WEP networks, the security key entered is the hexadecimal key, not the passphrase used to 
generate the key. WEP128 keys must be 26 digits long consisting of characters 0-9 and A-F. 
The FILTERSCAN WiFi Home Air Filter Monitor does not support # $ and & (See acceptable 
Special Character chart in FAQ section) in the SSID (NETWORK NAME) or in WPA or WPA2 
passphrases. 
17.  Your FILTERSCAN WiFi Home Air Filter Monitor is now connected to your wireless router, and 
has initiated a connection process where the FILTERSCAN WiFi Home Air Filter Monitor and 
your wireless router communicate with each other and establish a connection with no further action 
needed. 
NOTE:  If you will be using a corporate network to connect the monitor to the Internet, contact your 
network administrator prior to enabling the “Manual Pairing” steps in the Connecting to a 
Wireless Router Without a WPS Button section. Company policy may prohibit the use of 
web servers for security reasons. CleanAlert is not responsible for the use of, nor makes 
any claims as to the security of the web server interface over your network. The use of the 
web server is the responsibility of the end user. 
Connect to the AirFilterSentry Notification System Server 
1.  Upon successful sign up, configuration, installation, power up, and Internet connection, the 
FILTERSCAN WiFi Home Air Filter Monitor will be connected to the cleanalertwifi.com server 
through your wireless router and should require no further attention. The Monitor will start sending 
status messages to the server on a periodic basis. 
2.  To test the Internet connection: 
a.  Although the wireless transmission range should cover your building, it is greatest with minimum 
obstructions between the FILTERSCAN WiFi Home Air Filter Monitor and the wireless 
router. Any obstructions, such as walls, floors, and ceilings can reduce the range of transmission, 
and relocation of the wireless router may be required. Test location to ensure proper operation. 
b.  Depress the SEND button of the FILTERSCAN WiFi Home Air Filter Monitor once, and 
immediately release, to send status to the cleanalertwifi.com server database. 
c.  Then, login to your AFS account at 
www.cleanalertwifi.com to view your monitor’s status. 
NOTE:  Your FILTERSCAN WiFi Home Air Filter Monitor status display at the AirFilterSentry 
Notification Service is capable of displaying more than 100% clogged. This is possible 
since the “100% clogged” point is the recommended point when it is most efficient to service 
(replace or clean) the air filter. If you ignore the clog notification and continue to operate 
your HVAC system, the air filter will become dirtier. To provide the most efficient air filtration 
and HVAC system operation, you should service the air filter as soon as possible after being 
notified of a clogged condition. 
Calibrating / Resetting the FILTERSCAN WiFi Home Air 
Filter Monitor 










