Smartwares Smoke Detectors 4-pack 10-year sensor Replaceable battery optical sensor, mute mode, test/hush button, 85 dB alarm

SAFETY 24/7: Be alerted to any outbreak of fire with those four Smartwares smoke detectors. Because there are two smoke detectors, you are able to protect two floors of your home. RELIABLE SAFETY: These smoke detectors meet all European safety standards (EN14604). With their photoelectric sensor, they detect fires early, while emitting fewer false alarms. INCLUDED REPLACEABLE BATTERY: Each of the smoke detectors is powered by a replaceable 6F22 battery with a life of 1 year. Test it regularly by pressing the test button. LOUD INDICATORS: Audible signals will tell you if your devices are malfunctioning or if the batteries need replacing. The test/silence button switches your detectors to silent mode in the event of a false alarm. LONG-LASTING PROTECTION : The smoke detectors' photoelectric sensors have a lifespan of 10 years. You will need to replace your devices after this time.