I will add one more thing. Main reason for purchase. To help support inspectors with internal politics. When something fails visually there seems to be an attack on the individual inspector. That he/she is using their opinions rather than fact for rejecting welds. This tool allows for inputting data that appears on screen as go/no-go (green border/red border). Welder stands there, sees screen turn red. Can't really argue anymore or ask the inspector how many welds they have ever made in their career. They can do more than that, but that's why I bought them.
