Eliminate the unsafe distraction of turning on and off your dust collection system while you're operating a shop tool! The iVac Pro consists of two main components, the Pro Switch and the Pro Tool (Sold Separately), in your choice of 240V or 115V. A complete iVac Pro System gives you wireless control of your dust collection system, automatically turning it on/off every time you turn on/off one of your shop tools. Here is how it works: plug your dust collection system into a Pro Switch. Now add a Pro Tool for every shop tool you want to automatically activate your dust collection system. One Pro Switch can accommodate up to 8 Pro Tools, as long as they are within the 40' radio frequency range, making it possible to run your dust collection system only when you run your tools! And running more than one tool at the same time won't cause interference; the Pro Switch won't turn your dust collection system off until the last Pro Tool in your system is shut off. You can even program your Pro Switch to run a little longer than your tool to allow for dust clearance. So get started today by selecting a Pro Switch in 240V or 115V and adding up to 8 Pro Tools.