Chart plotting instruments; circuit testing instruments; computer data recording instruments; computer display instruments; computer graphics plotting instruments; computer interface instruments; data acquisition instruments; data capture instruments; data display instruments; detecting instruments, other than for medical use; diagnostic instruments, other than for medical use; electronic instruments for recording information; electronic instruments for testing electronic circuit components; electronic instruments for testing electronic circuits; electronic measuring instruments; electronic monitoring instruments, other than for medical use; laboratory instruments (other than for medical use); measuring instruments for electric circuits; voltage testing instruments