CES tech show begins with Amazon's Ring unveiling smart smoke alarm.

• Kidde, a fire safety product manufacturer, is partnering with Ring to launch a connected smoke alarm.
• In April, two models will be launched by the companies, along with a $5-per-month smoke monitoring subscription service.
• The CES technology conference in Las Vegas, which commenced on Monday, saw the announcement.

Kidde, a fire safety product manufacturer, has partnered with Ring to launch a connected smoke alarm, as announced by Ring at the Consumer Electronics Show in Las Vegas on Monday.

The Kidde smoke and carbon monoxide alarms that integrate Ring's home security technology and can deliver alerts to the Ring mobile app will be launched by the companies. The Kidde Smart Smoke Alarm with Ring will cost $54.97, while the Kidde Smart Smoke and CO Alarm with Ring will cost $74.97. Both products will ship in April.

In addition to the launch, Ring will introduce a $5-per-month subscription service that includes round-the-clock professional monitoring and emergency dispatchers.

In 2015, Amazon purchased Ring for $1 billion. The company is well-known for its video doorbell devices, which enable users to monitor activity outside their homes. However, Ring's product line has expanded to include a range of security products, including camera-mounted floodlights and flying drones.

The new smoke alarm service can be accessed without subscribing to Ring Home's video recording storage and security features program.