IOS-120 Infrared Object Sensor 
The Infrared object sensor option replaces the foot pedal. The IOS-120 is programmed to fill a complete cycle when an object is placed in front of the sensor. If your machine has 3 holes in the front as shown in the photos your machine comes with this feature. Simply order IOS-120 from Pro- Fill Equipment, unplug your foot pedal then plug in R-120 sensor. The machine is already programmed to work with the sensor.