Mirror Drawing Apparatus

This Mirror Drawing Apparatus is the most advanced and latest version and ultra modern technologically developed.This tool operates on A.C. Mains. Subject places the stylus at the starting point of Grooved Path of the Star the Digital Timer immediately starts recording time in seconds and its decimal parts and when
ever there is an Error the Digital Error Counter automatically records one Error in Digital Form.Thus, here in this Instrument Time and Error both are recorded automatically. Both the Digital Timer and Digital Error Counter are
Reset type and have Four (04) LED chips as Display.