iVAC Pro Switch, 240Vac, 20A – shop.ivacswitch.com
iVAC Automated Vacuum Switch : Amazon.ca: Tools & Home Improvement
How To Remotely Switch A Dust Collector On and Off - YouTube
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
220V Long Ranger III Remote Dust Collector Switch and Starter at Penn State Industries