Town of Wendell issued the following announcement on Oct. 2.
How do I know which smoke and CO alarm to choose for my home?
Choose an alarm that is listed with a testing laboratory, meaning it has met certain standards for protection. Whether you select a unit that requires yearly changing of batteries, or a 10-year unit that you change out at the end of the 10 years, either will provide protection.
CO alarms also have a battery backup. Choose one that is listed with a testing laboratory. For the best protection, use combination smoke and carbon monoxide alarms that are interconnected throughout the home. These can be installed by a qualified electrician, so that when one sounds, they all sound. This ensures you can hear the alarm no matter where in your home the alarm originates. Be Safe Wendell
Original source can be found here.
Source: Town of Wendell