Product Feature: 

• World's smallest smoke alarm / detector
• Moldel: CAVIUS 2008-002
• Photoelectric alarm designed for residential homes
• Alarm have a visual and acoustic signal designed to alert occupants
• It has a hush function to reset after an unintentional or false alarm
• Type of Mounting: Ceiling and wall mounting 

Technical Data: 

• Battery: Non-replaceable 10 year long life 
• Battery Type: 3v CR123 A Duracell Lithium Battery
• Indicator: Low battery, short acoustic "beep" will sound
• LED: Light flashes every 48 seconds when battery is near the end of its life
• Flash Duration: 30 days
• Life of Alarm: Change the alarm after 10 years of use or if it suffered any damage
• Activation: Turn to click into the mounting base
• Testing: Allow 5 seconds before testing after clicking into the mounting base
• No radioactivity technology