Batteris and Replacement Batteries for Smoke Alarms and CO Detectors
A smoke detector and CO alarm is a must for practical and low cost safety in the home. However, an alrm will only have the potential to save a life if its actually working.
Most detectors run off batteries (generally 9v); even the mains powered alarms will often have a battery back up.
Make sure your alarm has a working battery and change them frequently....buying from us is 100% safe