Installation Guide
25 
Specifications 
Differential Pressure Range  Near zero to 4.0 in w.c. 
Clog Filter Trigger Point  1.5 to 2 times initial differential pressure (at the recommended setting 
on the SERVICE FILTER control) 
Temperature Range  32
o
 to +122
o
 F (0
o
 to +50
o
 C) Operating 
  -40
o
 to +185
o
 F (-40
o
 to + 85
o
 C) Storage 
Humidity  80% RH, non-condensing 
Power Requirements (-B)  6.0 VDC at 90 mA Transmitting, <20 uA Standby 
Batteries, Monitor (-B)  (4) AA 2400 mAH 
Battery Life  Approximately 1 year 
Power Requirements (-C)  15 to 24 VAC/DC at 11 mA Transmitting, <20 mA Standby 
Insertion Depth into Duct  Does not extend into duct 
Local Clogged Air Filter Alert  Red STATUS LED & 2 KHz Beeper alternating ON & OFF five times 
Low Battery Alert  Yellow STATUS LED blinking approximately once per minute 
Malfunction Alert  Red STATUS LED continuously illuminated 
Wired Output  Pulsing 0 V to 5 VDC @ 18 mA max upon clog or low battery alert 
Relay Output  Optional one form C dry contact @ 500 mA max – Model FS-245-C 
Text & E-Mail Notification**:  User configurable SMS text messaging and e-mail 
Indicators:  Green / Yellow / Red Status LED and audible beeper 
Electrical Connections:  Power - 2.5mm barrel jack mates to wall adapter: Model FS-245-B, or 
  Power - Conduit into terminal block, 14-30 AWG: Model FS-245-C 
  Output - Conduit into terminal block, 14-30 AWG: Model FS-245-C 
Mounting  5 holes, 4 @ 7/64” and 1 @ 3/8" 
Monitor Dimensions  6” x 4.625” x 1.5”  
WiFi Module  FCC/CE/IC certified 2.4-GHz IEEE 802.11b/g transceiver 
WiFi Authentication  Secure using WPA-PSK (TKIP), and WPA2-PSK (AES) 
Transmission Range  Within your building similar to other WiFi devices, depending upon 
line-of-sight and obstacles 
FCC Identification #  Contains FCC ID Number: T9J-RN171 
Industry Canada #  Contains IC Certification/Registration Number: #6514A-RN171 
** Requires an AirFilterSentry Notification Service account, Internet connection, and wireless router. 
Specifications are subject to change without notice. 
Warranty 
Limited warranty  Please refer to www.cleanalert.com/termsofsale.html for full warranty text. 
For a period of one (1) year following the date of purchase of the Product, if the Product ceases to 
function and/or functions improperly due to a defect in material or workmanship, CleanAlert, LLC will 
repair or replace the Product (at its sole discretion) free of charge to the customer. This warranty does not 
apply to: 
1.  Damage caused by accident, abuse or mishandling of the Product after it has left CleanAlert, 
LLC’s facility; 
2.  Acts of God; 
3.  Units which have been subject to unauthorized repair and/or have been taken apart or otherwise 
modified; 
4.  Units damaged from installation or use not in accordance with these instructions; 
5.  Damages exceeding the cost of the Product; and 
6.  Damages that are considered normal wear and tear (in CleanAlert, LLC’s sole discretion). 










