Battery powered photoelectric smoke alarm
Power source: 9V battery (included)
Audio alarm: 85dB at 10ft (3 meters)
Temperature range: 40 to 100°F (4 to 38°C)
Humidity range: 5-95% RH relative humidity
Sensor: photoelectric
Size: 105mm in diameter x 59mm depth
Weight: 135g
Interconnects: no
LED: red, normal operating
Warranty: 5 years limited