Installation Guide
26 
A Product requiring warranty service shall be sent by the customer to CleanAlert’s facility in Paoli, PA. 
This warranty does NOT cover the costs of having the Product transported to CleanAlert, LLC for warranty 
service. The customer is responsible for safely sending the Product to CleanAlert, LLC. 
WiFi 
Transmitter 
The FILTERSCAN WiFi Home Air Filter Monitor contains a WiFi radio module operating at a 
frequency of 2.4GHz, which is activated periodically. Transmissions to the AirFilterSentry 
Notification Service, are very short in duration. 
Each FILTERSCAN WiFi Home Air Filter Monitor has been assigned a unique MAC address at 
the time of manufacture. 
Remote Update  
The FILTERSCAN WiFi Home Air Filter Monitor has the ability to allow the cleanalertwifi.com 
server to update the Monitor software. During user configuration on the AirFilterSentry Notification 
Service website, if you checked the “Allow Automatic Updates to your FILTERSCAN Software?” 
box on the Edit Monitor screen and there is a later version of software available on the server, your 
FILTERSCAN WiFi Home Air Filter Monitor will automatically download the latest version of 
software and update itself without any action by you. The update will be transparent and all operating 
parameters will be intact after the update. 
1.  Software updates will be made available by the AirFilterSentry Notification Service.  
2.  When an update is made available, the Notification Service will send an update command to 
the FILTERSCAN WiFi Home Air Filter Monitor in response to the Monitor’s periodic 
status message. 
3.  If you’ve elected to receive automatic updates, the Monitor then downloads and validates the 
new software. 
4.  No further action is required on your part. 
Revision History 
Rev. # 
Effective 
Summary: 
4.00 
7/21/16 
Updated for Auto-Calibration and Android network connection operation 
4.02 
9/9/16 
Updated alarm functions 
4.03 
1/12/17 
Revised and added Special Character statements for SSID and passphrase 
4.04 
2/24/17 
Added AFS Transfer FAQ 
5.1 
10/3/17 
Revise from Basic to Home 
5.2 
11/10/17 
Added new FILTERSCAN Logo 
5.3 
3/23/18 
Revise from AFS 2.x to 3.0 and Added Remote Reset feature 
5.4 
6/13/18 
Revised “Malfunction” section improving clarity 
5.5 
8/6/18 
Added screen shot at Figure 14 










