Test button allows you to quickly check unit's circuitry, horn and battery status. Chirp-style low-battery indicator. Red power-status LED. Protective dust cover. 85 db Alarm. Power Source(s): 9V Battery; Mounting: Ceiling; Wall.

Make personal safety your priority with this durable combination smoke and carbon monoxide alarm, with a ten-year product life. This unit comes equipped with a sealed-in lithium power supply that lasts the entire ten-year life of the alarm and eliminates concerns about battery removal and unauthorized alarm deactivation. It's quick and easy to install; alarm automatically activates when attached to the mounting bracket. Smoke alarm contains photoelectric sensor that may detect visible particles associated with smoldering fires sooner than ionization alarms. Includes a test/hush button that tests alarm circuitry and temporarily silences nuisance alarms. Rapidly flashing LED lights alert users if alarm has sounded since the last time the test/reset button was used. End of life warning alarm chirps every 30 seconds when unit is in need of replacement, but can be silenced three days at a time for 30 days to allow time for replacement. Power Source(s): Lithium-Ion Battery; Mounting: Ceiling.

When every second counts, you'll have your warnings spoken to you in a loud-volume voice: Fire, Fire! or Warning! Carbon Monoxide! Two-alarm system also announces Low Battery when batteries need changing. Also includes chirp signal, flashing LED and test/reset button. Uses three AA batteries (included). Power Source(s): (3) AA; Mounting: Ceiling; Wall.

Keep your family safe without the hassle of battery-replacement and maintenance. The sealed-in battery keeps this carbon monoxide alarm functioning for ten years without the need for replacement. Easy to install alarm automatically activates when attached to the mounting bracket. Test/reset button tests unit for proper operation and resets carbon monoxide alarm. Green LED flashes every 30 seconds, indicating unit is operating properly. Red LED will pulse and a loud alarm pattern will sound when a dangerous level of carbon monoxide is detected. Red LED will also flash every 60 seconds if a high level of carbon monoxide has been detected within 14 days. Power Source(s): Lithium-Ion Battery; Mounting: Wall.