------------------------------ The calibration module is used to calibrate an I/O module as. Described in the "Self-Tests, Configuration and Calibration" section of the *Fluke* 9100a Technical Service Manual. I dont have a 9100a to test, but they look brand new. I have a bunch. $30 shipped anywhere in the US. _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/