The Kidde i9010 is a 10-year, sealed battery, ionization, smoke alarm with Alarm Memory and HushTM feature. The innovative design of this alarm’s automatic activation is unlike any other smoke alarm. The i9010 alarm will automatically activate when it is attached to the mounting bracket; there are no pull-tabs, no switches, everything is automatic. At the end of the alarm life, the unit will chirp, indicating the alarm is in need of replacement. The customer can use a simple tool such as a screwdriver to deactivate the unit, stopping the low battery chirp and making it safe for disposal. The sealed-in board-mounted battery will power the i9010 unit for its complete 10-year life. No replacement battery will ever be needed. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms.