Part # HP 00041-15027

HP-41C Stress Analysis PAC for HP-41C Series calculators, 41C/CV/CX

Boxed, everything is in “like new” condition and Fully functional. 

Includes: Owner's Manual and 5 overlays as shown in the pictures. Everything is in excellent condition, even the Box!

Guaranteed in working condition. 

Free domestic shipping with USPS tracking number.

Global Shipping Program takes care of international charges.

Caution: Always turn off the calculator when inserting or removing the HP pac module, failure to turn the calculator off, could damage both the calculator and the accessory.
When plugged in the pac module, the names of all programs contained in the module can be display by  pressing yellow key function, CATALOG, 2 (Number two key).