This is a used Olympus D790-SM 5MHz probe thickness gauge D790 5MHZ that was tested prior to being listed and is in working condition. What you see in the pictures is what you get. Nothing more. Nothing less. Please see pictures for more details. Customer service is our #1 priority so please don't hesitate to ask us questions or reach out. Olympus D790-SM 5MHz probe thickness gauge D790 5MHZ.