The Activa or WashMax Site Controller is a device that resides in the car wash site's store or equipment room and processes wash codes, credit cards, marketing programs, etc. It can interface with a Point of Sale (POS) device to sell wash codes, and may be used to monitor the car wash equipment.

The Activa or WashMax Site Server is a device that resides in the car wash site's store or equipment room and processes wash codes, credit cards, marketing programs, etc. It can interface with a Point of Sale (POS) device to sell wash codes, and may be used to monitor the car wash equipment.