[saxmaniac]

I had one of these 10 years ago and can't remember answers to your question, but I would say if you mean to mount it indoors for domestic use, it's very noisy as regarding the clunk that's made when the solenoid resets the arm (pardon me if this is gibberish but the details have faded from the memory!) Bottom line was in my case that although it seems ok in the day, at night the regular clunks make sleep impossible and I had to sell it. Shame as it was a lovely thing!