The CSPC has approved Nest's fix to its smoke alarm and carbon monoxide detector. The company says the device will soon return ot the market. Aya Brackett/ Courtesy of Nest
The CSPC has approved Nest's fix to its smoke alarm and carbon monoxide detector. The company says the device will soon return ot the market. (Aya Brackett/ Courtesy of Nest)

Smart-appliance maker Nest said Thursday that its Nest Protect smoke detector and carbon monoxide detector will soon return to the market, one day after the U.S. Consumer Product Safety Commission announced that the company would officially recall 440,000 faulty units.

Nest first alerted customers to a problem with its device in April that made the system mute its alarm in some cases. There was a bug in a function in its sensor that turned off the smoke alarm if users waved at the device.  The company said that it has had no reports of customers having the problem but that it came across it in certain conditions in its own lab. In response, the company alerted customers to the problem and pushed out a temporary fix that disabled the wave feature.

In a statement Thursday, the company said that nothing has changed from its previous announcement and that it plans to bring the product back onto the market "soon."

"Customers who have not already done so should review our Letter from the CEO and follow the instructions there to ensure they have connected their Nest Protect to the Nest service and had Nest Wave disabled," the company said in a statement. "Current customers who have already followed these instructions can continue to use their Nest Protects once the Nest Wave feature has been disabled."

Even without the wave feature, the firm said, the device will still function as a smoke and carbon monoxide detector.

Nest was acquired by Google for $3.2 billion in January, and was seen as a key part of the company's efforts to bring more connected devices into consumers' homes. Critics noted that adding more devices to its portfolio allowed Google to collect more data from consumers and more platforms for advertising.

In fact, reports from the Wall Street Journal earlier this week indicated Google intended to do just that, citing a December filing with the Securities and Exchange Commission in which Google said companies could potentially display ads on connected products such as thermostats and smartwatches.

"We and other companies could be serving ads and other content on refrigerators, car dashboards, thermostats, glasses and watches, to name just a few possibilities," the filing said.

In a statement, Google clarified its remarks and said that it's in contact with the SEC to explain that such ad strategy is not in its product roadmap, nor in Nest's.

"Nest, which we acquired after this filing was made, does not have an ads-based model and has never had any such plans," the company said in a statement.

Nest's Tony Fadell has also told customers that the Nest will not be used to serve ads, telling Re/Code that his company is "being run independently from the rest of Google, with a separate manage team, brand and culture."

"We just don't think ads are right for the Nest user experience," he told the tech site.