FILE - In this Tuesday, Oct. 1, 2013, file photo, the Nest smoke and carbon monoxide alarm is shown at the company's offices, in Palo Alto, Calif. Google said Monday, Jan. 13, 2014, it will pay $3.2 billion to buy Nest Labs, which develops high-tech versions of devices like thermostats and smoke detectors. (AP Photo/Marcio Jose Sanchez, File)