Worry-Free Smoke Alarm with Sealed Lithium Battery Power Test Hush Button -a single button that tests alarm and circuitry and temporarily silences nuisance alarms Led indicator -A flashing red indicator sound, unit error mode, and standby condition. Sealed-In Lithium Battery- units will continue to operate for 10 years. Alerts user to replace alarm after 10 years of operation Power Source: Sealed Lithium Battery Sensor: Photoelectric Audio Alarm: 85dB at 10ft Temperature Range: 40?F (4.4?C) to 100?F (37.8?C) Humidity Range: 10%-85% non-condensing relative humidity (RH) Size: 5.22” in diameter x 1.6” depth Weight: 1 lb. Interconnects: No Warranty: 10 year limited
|Dimensions, Exterior Width:||5.22 Inches|
|Dimensions, Exterior Height:||1.6 inches|
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