I tried getting this deal during Prime Day but they ran out of stock. Ended up getting the 8 piece and buying additional sensors directly from the Ring website.
Ring has developed a system to where, I changed to it from SimpliSafe. I'm a tech kind of guy and think the Ring stuff is better for a lot of reasons. One of which is, unless you live in a SimpliSafe area that has cell reception through their few providers, you can't use or even get their top line monthly 911 package.
Comments & Reviews (9)
https://www.costco.com/ring-10-piece-wireless-security-alarm-kit.product.100677650.html
Thank you!