Where to obtain a OBD1 code reader

I have a '93 Grand Prix and want to acquire a OBD1 scanner as I do most of my own wrench turning.

My Factory Service Manual says to hook up the Tech 1 for trouble shooting....take it they are one in the same?

Where can I get my own scanner/Tech 1??

Thanks.

Lefty, if your just wanting to read SES light codes, with a 93, you should be able to do it with a paperclip.