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BRK CO4000E 3Volt Battery Powered Carbon Monoxide Alarm

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BRK CO4000E 3Volt Battery Powered Carbon Monoxide AlarmDESIGN AND INSTALLATION:
BRK CO4000E features an electrochemical CO sensor, an 85dB horn, a single button for test/silence and a red LED that blinks to indicate unit is receiving power.
The front access battery door allows battery access without removing the unit from the wall.
The low power warning indicator will cause the alarm to "chirp" when the batteries need replacing.
The low power warning indicator can be silenced for up to 8 hours.
An Alarm Action Chart identifies action steps to take if unit is in alarm.

Weight 5.5 oz
Operating Voltage Two 1.5V AA Batteries
Temperature Range 40F (4C) to 100F (38C)
Humidity Range 10% to 90% relative humidity (RH)
Audio Alarm 85dB at 10 feet
Test Button Electronically simulates a carbon monoxide condition, causing the unit to alarm
Alarm Reset Automatic when carbon monoxide clears; Press Test/Silence button to reset manually
Sensor Electrochemical
Indicator LEDs DC Power: Red LED flashes once per minute Local Alarm: Audio alarm (4 beep, pause, 4 beeps) and rapidly flashing Red LED
Listing UL2034
Product Guarantee 5 years *excludes battery