Google has discontinued its smart smoke alarm and partnered with First Alert on a new $129 detector that will work with current Nest Protect alarms.

"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."

Google has discontinued producing the second-generation Nest Protect connected smoke detector. Existing Nest Protect units will continue to receive software and security updates. Google recommends the SC5 Smart Smoke & Carbon Monoxide Alarm from First Alert as a replacement for Nest Protect.