Smoke detectors are a vital part of your home and family’s safety. It is a good idea to test them at least once per year. Standard smoke detectors are hard wired in with a battery backup so they operate even if there is a loss of power. The new smoke detectors have a battery that can last up to 10 years. If one smoke detector goes off it will cause the others in the system to sound as well. The one that initiates the alarm LED will flash when the other ones have a steady light. Sometimes one will just go bad and need to be replaced. When the batteries go bad, the unit will chirp and that just requires replacing the battery with a new 9 volt.
Carbon monoxide sensors should be close to the ground because carbon monoxide is heavier than air.
