Power: DC 9V battery
Operation current: < 15uA (standby), < 30mA (alarm)
Alarm volume: > 85dB(A) at 3 meters
Flash alarm indicator (red LED)
Low battery warning: 6.5-7.8V
Alarm sensitivity: 1.51-2.64%/ft OBS
Comply with: UL217&CAN/ULC-S531
Photoelectric chamber for early detection from all directions
Test button for easy recommended monthly testing
Safety clip feature, not allow mounting of smoke alarm without battery installed