So you want to purchase a smoke detector, but you have no idea what to look out for. A smoke detector or fire alarm is indispensable in every home. If there is a fire in your home, the smoke detector warns you and your family on time with a smoke alarm. When you choose a suitable, optical smoke detector, decide if you want a connectable smoke detector or one that can't be connected. It also important to choose between a smoke detector on batteries or one that runs on the power grid. We're here to help you make your choice and find the right smoke detector for you.