Link: https://amzn.to/30HuP2L

About this item

• Sealed-in lithium battery – Sealed-in lithium power supply; No battery replacement required over the 10 year life of the alarm. Eliminates worry about battery removal or unauthorized deactivation of alarm
• Self-activation – Alarm automatically activates when attached to the mounting bracket, HushTM – Will temporarily silence nuisance alarms and will not allow hush mode to be activated unless the unit is in alarm mode
• Alarm memory – Rapidly flashing LED alerts user if the alarm has sounded since the last time the test/reset button was used. Temperature Range-40˚F (4.4˚C) to 100˚F (37.8˚C)
• End of life warning – Alarm chirps every 40-45 seconds indicating the alarm is in need of replacement, Tamper resist – (when activated upon installation) effective in preventing someone from removing the unit from the mounting bracket
• Test/reset button – Tests unit’s circuit operation and resets memory after an alarm condition occurs, LED – A flashing red indicator light with four modes of operation: standby, alarm mode, hush mode, and memory set
• Sealed in lithium battery never replace battery over the ten-year life of the alarm
• Self activation alarm automatically activates when securely attached to the mounting bracket