Alarms vs. Detectors
Smoke "alarm" usually refers to a type of device typically found in the home. It is a stand-alone device, typically powered by a 9 volt battery, which detects smoke and provides an alarm. Smoke "detector" refers to a device that is part of a fire alarm system - it detects smoke but requires other devices to generate an alarm.
Types of Alarms
There are generally two types of smoke alarms, photoelectric and ionization. Both are suitable for use in your home. Photoelectric alarms are the most reliable for smoldering fires which may occur in bedrooms or sitting rooms. Ionization alarms are the most reliable for detecting flaming fires, which may occur in the kitchen or garage. Combination smoke alarms featuring both photoelectric and ionization technology also are available.
Additional considerations
- Review the packaging and the device to verify it has been tested and labeled by a recognized testing laboratory.
- Utilize alarms that are connected to the household electricity and include a battery backup.
- Install "interconnect" alarms so when one activates, all devices activate.
- Some alarms include a recordable voice announcement that may be helpful in waking children.
- Strobe light features and bed shaker options are available for people who are deaf or hearing impaired.
- Hard-wired smoke alarms operate on your household electrical current and should be interconnected so that every alarm sounds regardless of the fire’s location, this provides an early warning and increases your escape time.
- Some children and the elderly may not readily awake to the sound of the smoke alarm. Install interconnected alarms, with a device in each bedroom, to increase the potential they will hear the alarm.
