First Alert Carbon Monoxide Alarm Instructions

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Carbon monoxide is a gas that can slowly suffocate people if too much is present. Carbon monoxide or CO can enter the house in many ways, usually from malfunctioning furnaces. It is odorless, scentless and colorless. It is a quiet killer. First Alert carbon monoxide alarms can detect carbon monoxide and save lives.

How Your Alarm Works

  • Your CO alarm detects carbon monoxide in the air. It takes a reading of the air around it every second or so while it is fully powered. The computer inside the alarm stores the levels of CO that is in the air during these readings. If the CO is at a safe level, the alarm will simply sit plugged into the wall for years. The LED light will shine while it is plugged in, to indicate that it is plugged in and working. However, if the CO level ever gets above a dangerous level, a high-pitched alarm will sound. The alarm will sound at a rate of 85 decibels, which will be heard anywhere in the house, and should wake up sleepers.

How to Install

  • Every CO alarm should come with self-adhesive labels. These labels are used to write the name of the emergency responder in your area. Place one near the alarm and another in a safe area. Once you have done this, open up the battery compartment in your alarm. Place the AA batteries in the container and close. These batteries will only go into effect when the alarm is disconnected from power source. Find a power outlet in the area you wish to install the alarm. Press it gently into the outlet. The LED light will shine uninterrupted once it is getting full power. Once your alarm is installed, hold the test button until the alarm goes off. Your alarm is now ready to protect.

Understanding Your Alarm

  • Your alarm will behave different under different circumstances. Understanding why it behaves in this way is crucial to understanding your alarm. When installing the batteries, the LED light will flash once and the alarm will stay silent. This means that the batteries have been successfully installed. In normal safe circumstances, the alarm will remain silent and the light will shine without interruption. Testing causes the alarm to sound four times, pause, and then sound four more times. The light will flash in rhythm to the alarm. When the power supply is taken from your alarm and it must run on batteries, the horn will remain silent and the light will flash once a minute. If your batteries are getting low during a power outage, the horn will sound once a minute, with the LED light flashing with the beep. If the alarm is not functioning right, the horn will chirp three times every minute with the LED light flashing in unison. When CO is at a dangerous level, the alarm will beep four times, pause, and then beep four more times. The LED light will flash in rhythm to the beeps. This alarm will continue until the CO is safe in the house. However, if the alarm is running on battery power, it will only run for four minutes. Never go back into the house until a specialist has tested it and said it is safe.

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