HP SCIENTIFIC CALCULATOR 32SII RPN

 Calling all engineers--Hewlett-Packard's HP32SII Scientific Calculator is the calculator for you. With 384 bytes of memory, 26 variable keys, more than 100 built-in scientific and mathematical functions, and RPN data entry, you'll find everything you need for efficient and fast calculating in this compact unit.

We like Hewlett-Packard's HP Solve feature, which lets you solve for any variable without having to rewrite your equation. And, like most scientific calculators, the HP32SII can perform decimal/hour/minute/second conversions, polar/rectangular/angle conversions, unit conversions, base conversions, and arithmetic.

The LCD can display one line with 12 characters and is bright enough for most environments. The calculator runs on three LR44 batteries, which come with the unit.