TapTone offers three distinct technologies for fill level inspection: x-ray technology, infrared optical technology, and vision technology. Our low energy x-ray system, Fill_xr, can inspect all container types including metal and is the most sensitive system TapTone offers. Our infrared optical system, Fill_ir and our range of vision based systems can be used to detect fill level in transparent and semitransparent plastic and glass containers. All fill level systems require a User Interface for set-up and operation. They can purchased as stand-alone inspection systems or can be added to other TapTone systems for multifunction product inspection.