What is the lifetime of the sensor plate? And does the plate deteriorate over time and impair the performance of the target?

The lifetime of the sensor plate is practically unlimited. The lifetime of a top plate is approximately 10,000 shots with a rifle or 50,000 shots with a pistol.

The precision of the impact location will remain unchanged. However, once the 10,000 rifle shots / 50,000 pistol shots have been reached, the display may become slightly blurred. It is then time to replace the top plate.