STANDARD MAIL:
Assisted Access-NFSS, Inc.
PO Box 1215
Crystal Lake, IL 60014
PHONE (Voice /OR/ TTY):
847-265-8022
(10AM-4PM Mon-Fri CST)
**NEW** Fax: 888-552-1708
E-MAIL: Send Mail
Please read our: POLICIES & INFO section before completing your order
The smoke alarm operates on the light scattering principle, a superior method of detection in smoldering fires. It has a pulsing LED light source and a photodiode sensor in a fully screened sensing chamber. When smoke enters the chamber, the infrared beam is deflected onto the sensor. The LED rate increases to 8 times the normal pulse rate, and after the photodiode confirms the presence of smoke for 2 consecutive pulses, it will produce the signal necessary to trip the audible and strobe light alarms.
The 713 series provides the temporal 3 (T3) evacuation tone as a standard feature. When testing, it may take up to 16 seconds longer to go in or out of alarm.
Features: