Nexdome sells some great products from other companies in other countries so as to make them easier to obtain here in the states. One item is the Sky Watcher. I LOVE THIS THING. It has sensors that watches the conditions for observing. You need to have a computer running is which kind of a turn off. Sooooo... they created the SOLO which is a small Pi computer (cheap) that can run 24/7 with no worry. The two worth together and mine makes a display that looks something like this. With SGP you can make it close the shutter door of the dome automatically when it rains, OR before - when clouds roll in. (which is what I prefer).
The external unit, I mounted in the shade. (never gets direct sun here) and it aims at the incoming sky to get clouds as they first move in from the west. I used a CRTV camera mount I found on Amazon for around 7.00. It's aiming N - NW. Back chips come next week which will be blown in over the dirt/cords. The IP address is entered and you access the screen like the one below. You can share the link with others. I watch it continuously while I'm imaging. Or if I go to bed, when clouds move in the shutter will close automatically before it starts to rain. SGP will show a green or a red button/light in the lower right corner of it's interface. Red for unsafe conditions and Green for save. You can also see this on my live link.
Click here to see it live: http://kramers.mynetgear.com:10443/