Convergence Gauge
This small, handheld, opto-mechanical device is used to measure the convergence error between the lines of a CRT display. This sturdy, accurate tool is sufficient to obtain measurements that are invaluable to engineers, manufacturers, and quality inspectors. The CM7A series is made for monitors, the CM14A series is for medium-sized screens, and the CM28A series is for large-screen and rear-projection big-screen TVs.
