Dust Collector Remote Switch – 8-Position DIP Power Switch – On-Off 110 Volt Dust Collection & Air Filtration From Any Place – Includes Transmitter Dust Collector Switch, Remote, & 6' Grounded Cord - - Amazon.com
iVac Dust Collector Switch Box - Rockler
220V Long Ranger III Remote Dust Collector Switch and Starter at Penn State Industries
How to Make a Cheap and Easy Automatic Vacuum Switch – Maker WS
How to Make a Cheap and Easy Automatic Vacuum Switch – Maker WS