Quote Originally Posted by Hsing-ee View Post
Actually you’re probably right. I just use it to check after a re-spring not for making spreadsheets for science.
It's a cracking unit , May have to put a pen or your barrel though the unit to reset it now and then once switched on but these must be near 30 years old, Been tempted to get a new one, its the diamond window that puts me off, Maybe I'm just used to a big square window,