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    Install: Carbon monoxide detector

    Wireless CO sensor that alerts on rising carbon monoxide levels.

    Tools needed

    • • Screwdriver

    Setup time

    15 minutes

    Step-by-step

    1. 1Pair the CO detector from the panel.
    2. 2Install one per level, ideally near sleeping areas and any fuel-burning appliance.
    3. 3Mount at wall-outlet height or higher — CO mixes evenly, unlike smoke.
    4. 4Press test to confirm the alert reaches the panel.

    Common mistakes

    • • Placing in the garage — vehicle start-up will trigger it.
    • • Mounting within 5 ft of a furnace.

    Troubleshooting

    • • End-of-life chirp: CO sensors expire after 7–10 years; replace the unit.