·       Photoelectric smoke sensing chamber technology

·       Integrated indicator provides visual indication of both the quiescent condition and an alarm condition

·       Test and Hush functions in a single button

·       Test button verifies battery and alarm operation

·       Test and Hush visual indicator

·       Loud 85 dB sounder to alert occupants

·       Surface-mount device (SMD) circuit board design

·       Single DC 9 V user-replaceable battery provides up to 18 months operation under normal conditions

·       30-day low battery audible warning signal

·       Battery missing indicator prevents the unit from being installed without the battery fitted

·       Up to 38 units interconnectable using the wired transmission path

Ordering Information