Google Nest Protect 2nd Generation Wired Smoke/CO Detector

Comprehensive Detection: Detects fast-burning fires, smoldering fires, and carbon monoxide.
Smart Alerts: Alerts you to danger locations and sends notifications to your phone if you’re away.
Clear Communication: Speaks warnings instead of beeping, with a gentle “Heads-Up” to catch issues early.
Convenient Operation: Features a “Hush” button and a test button for easy control.
Long-lasting Sensor: Designed with a 10-year sensor lifespan.
Battery Requirements: Operates on 3 x AA batteries (included).
Compact Design: Measures 13.5 x 13.5 x 3.9 cm, and weighs 0.79 kg.