Every home should have at least two smoke alarms, and more if possible, depending on the size of the house and the number of rooms. A Firex smoke alarm is a very common alarm that can be battery-operated or hardwired. If you own the battery-operated one, you will need to know how ...
A dying battery or unreliable power supply is the most common cause of false alarms on the FireX smoke alarm. Replace the battery in the smoke alarm at least once a year to ensure proper operation. Only use new9-volt batteriesas replacements. Do not use rechargeable batteries. If the unit ...