iVac Pro Tool HP

I like the system a lot and am very happy I made the purchase. This unit keeps me from constantly running to my electric panel to turn my dust collector on and off. Now, all I need to do is turn on any of my stationary tools and the dust collection system turns on. When I turn the tool off, 15-seconds later the dust collector turns off. The installation is very simple and trust me when I tell you, almost anyone can install it. My only problem with the system, and the reason for the 4-star rating is because ever once in a while, after I turn off a given tool. the dust collector wont turn off. The only way to get it to turn off once this happens is to un-plug iVac Pro unit and then plug it back in. Not a huge problem but it is a problem that shows up once in a while.