Google has discontinued the 2nd-gen Nest Protect smart smoke detector. The search titan has posted on the Google Nest Community Blog that it is no longer producing new units of the Nest Protect. Furthermore,

"The Nest Protect has been one of our most beloved devices," said Anish Kattukaran, chief product officer at Google Home & Nest, "And we are excited to be partnering with established industry leaders like First Alert so users can manage more of their safety devices together for a safer and more protected home."

Life safety manufacturer First Alert launched a new line of smart smoke and carbon monoxide alarms this week that will work with Google Home. Following Google’s decision to discontinue its Nest Protect smart smoke alarm, the company has announced it’s partnering with First Alert on the First Alert Smart Smoke & Carbon Monoxide (CO) Alarm.