Vacuum Relay


The Vacuum Relay is an I/O based board devise designed to activate your vacuum timer. It is placed inside your existing control box on the vacuum or can be mounted in an accessory box.  This is a low cost addition that gives you vacuum control at a site, device, and/or user level. You can now integrate vacuums into your monthly pass, self-serve, or individual sales strategy.  The vacuum relay is connected via WiFi or wired Ethernet and is activated by scanning a QR code with your cell phone from your car wash branded app.

Use Cases
  • Provide a free vacuum to your monthly wash pass holders.
  • Provide a buy a wash, get a free vacuum credit.
  • Sell bulk vacuum time and let customers redeem on their schedule.
  • Integrate self-serve and vacuum prepay specials to drive higher transaction dollar amounts.

Auxiliary Controller


The Aux Controller is the communication interface for vacuum, self-serve, and vending activation. These accessory units are relay activated. The Aux Controller is installed in your equipment room and communicates with the accessory units via WiFi or wired Ethernet connection. As with all Dencar equipment, the base operating system is Linux for maximum reliability in a commercial grade environment. (We do not run on Microsoft Windows) The Aux Controller is managed out of the Customer Management Portal as part of Dencar’s cloud first strategy. This maintains control and visibility of every device as part of the Integrated Sales Experience. Only one Aux Controller is needed per site to activate accessory units.