You want to buy a smoke detector, but you have no idea what to look for. A smoke detector or fire alarm is indispensable in every home. When a fire breaks out in the house, the smoke detector warns you and your family in time via a smoke alarm. When making a selection with a suitable optical smoke detector, please refer to the connectable and non-connectable smoke detectors. It is also important to make a choice between a smoke detector with batteries or a smoke alarm on mains power. We help you in making a choice and always go for the best smoke alarm for you.