(Reuters) - Alphabet (NASDAQ:GOOGL) Inc unit Nest, which makes smart thermostats, said Chief Executive Tony Fadell would step down.
Fadell, who spent six years in charge at Nest, will remain as an adviser to Alphabet and Google co-founder Larry Page.
"Although this news may feel sudden to some, this transition has been in progress since late last year," Fadell said in a blog post on Friday.
Search giant Google bought Nest in 2014 for $3.2 billion, aiming to lead the way on how household devices link to each other and to electricity grids.
Nest is currently a part of "Other Bets" under Alphabet's new operating structure.
The segment comprises the company's so-called "moonshots", including ambitious projects such as self-driving cars, glucose-monitoring contact lenses and internet balloons.
Marwan Fawaz, who has had prior stints at Motorola (NYSE:MSI) Mobility and Charter Communications Inc (NASDAQ:CHTR), will replace Fadell.