Smoke Detectors Limitation and Information Statements

Smoke alarm(s) operational, not tested with smoke: Smoke alarm(s) appears to be operational, i.e., the test button(s) works when pushed. However, clients should note that this action only tests the battery of the unit(s). Testing of the actual smoke detector mechanism requires the use of smoke, which is outside the scope of this inspection. Additionally, only a representative sampling of units are tested even if “smoke sticks” are employed. Smoke alarms which utilize batteries as either a primary or secondary power source should have the batteries replaced twice per year. The smoke detector mechanism of these alarms only has a life span of 10 years, requiring replacement of the entire smoke alarm after this time. When replaced, combination photo-electric and ionization units should be used to protect against smoldering fires and flaming fires, respectively. Alarms presently are being manufactured with enclosed 10 year batteries. This prevents frequent battery replacement and acts a reminder to replace the entire alarm when the battery dies.