I don't install too many now because most of my customers have them but these were first timers so I slapped one on. This is the Richdel 512 I believe. It's hard to get to the 24 volt power source the way the transformer is situated so I'm using a spare zone to power it. The best thing about the Rainmaster remote is that the cord that connects the two parts allows you to hang it on the door. Finally I cable tie it to keep it from getting yanked. I did not install this clock but if I had the 120 splice would be in a junction box not tucked inside the controller. I sold two extra hours of work walking the customer through the system. It took about ten minutes to install. Sorry about the sideways pic.