• Front Load Battery Door - Provides easy access; which reduces the installation and battery replacement time
• Hush® Button - Temporarily silences nuisance alarms
• Test Button - Simultaneously tests the unit's electronic circuitry; horn and battery function
• Tamper Resistant - Deters removal of the unit from the wall or ceiling and optional tamper resistant switch that prevents the battery door from being opened >> The Kidde Smoke Alarm Battery Operated Front Load Ionization technology-better at detecting fast flaming fires. Battery powered-9V battery included. Easy installation. Accessible without removing cover plate. Test button-tests circuitry and verifies alarm operation. Hush button-quickly silences nuisance alarms. Front loading battery door-change the battery without removing the alarm. Tamper-resistant switch locks the battery door compartment; preventing the removal of batteries for continuous protection.