Amazon's dinky Astro robot is now available as a security guard

It's been a couple of years since Amazon first showed off Astro, its Alexa-equipped home robot with an extendable camera. Now the company is announcing Astro for Business which will let small and medium-size businesses use Astro as a security guard. Amazon thinks it's here they'll get the most use from the platform, keeping watch over business sites no larger than 5,000 square feet. It's $2,350 for a unit, and the buying company will get four months free access to both Ring Protect Pro ($20 a month) and Astro Security ($60 a month). The former lets you hook up to an existing Ring setup, while the latter lets you set up specific patrol routes and alerts.