This is a somewhat technical question. I have a cat and right by his litter box I have a nice air cleaner. I want the air cleaner come on only during his using- the- litter- box time. So need to come up with a proximity switch and maybe a relay design. I can figure the wiring no problem. Just need suggestions from people who may have good ideas about my little project. I welcome your recommendations.
A happy and successful 2011 to all.