The smoke alarm shall be a BRK Model 7016BTCA and shall provide at a minimum the following features and functions: A photoelectric smoke sensing chamber. The unit shall be capable of self restoring. Fully screened sensing chamber to resist entry of small insects thereby reducing the probability of unwanted alarms. Powered by 120 V AC, 60 Hz and have a monitored 9 V battery backup model and a solid state piezo horn rated at 85 dB at 10 ft. A visual green LED power-on indicator to confirm unit is receiving power or is in alarm. A full function test button should check all alarm functions by simulating a smoke condition, causing the unit to alarm. Two silence features - temporarily silence battery chirp and unwanted nuisance alarms. Two latching features: alarm latch: easily identifies initiating alarm even after alarm condition has subsided. Low battery latch: identifies which unit is in low battery condition. Two Locking features - tamper resistant locking pins that lock battery drawer and/or alarm to mounting bracket.