So doing a little digging, it is a security company:

"Chesapeake and Midlantic Marketing is a technical manufacturer's representative firm in the security industry in Maryland, Virginia, Washington DC, Pennsylvania, New Jersey, and Delaware.We provide free technical education, system demonstration, system design and specification assistance, solution budgeting, and after sale support to security end users and their supply chain. Essentially we are technical field sales representatives and are experts in the security and communication solutions business.We are geographically positioned to provide local services and support from Virginia to Pennsylvania. We work to provide rapid, multiple means of supporting and responding to our customers, serving partners in the Mid-Atlantic from two main offices in Chadds Ford, PA and Abingdon, MD. Team members are available to provide help at all phases of the project cycle, from system design to after-sale support."

So I'm wondering if the cameras are used for demonstration purposes?

Edit: website: https://www.midches.com/about/our-story/