Graphing
The graphing category at Porter Electronics features a comprehensive selection of refurbished graphing calculators, meticulously restored to deliver peak performance without the high price tag. Ideal for students, professionals, and educators alike, these calculators combine advanced mathematical functions with reliability, making them essential tools for anyone in need of robust calculation capabilities.
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ORIGINAL Soft Case for HP 50G/48G/48G+/48GX/49G+ Graphing Calculators
HP
$22.00This Original HP Soft Case is designed specifically for the HP 50G, 48G, 48G+, 48GX, and 49G+ graphing calculators, providing durable protection in a lightweight and compact design. Made from...$22.00 -
TDS Surveying Pro Card for use with HP 48GX Calculator
TDS
$309.99Equip your HP 48GX with the TDS Surveying Pro Card, a powerful plug-in module designed for professionals and students in surveying, civil engineering, and GIS. This robust card transforms your...$309.99 -
TDS Surveying GX Card for use with HP 48GX Calculator
TDS
$309.99Upgrade your HP 48GX calculator with the TDS Surveying GX Card, a powerful solution for land surveying and field data collection. This plug-in card enables advanced surveying features including...$309.99 -
On Sale
TDS 256K RAM Card for HP 48GX Calculators
HP
Now: $279.99Was: $309.99Expand the functionality of your HP 48GX calculator with the TDS 256K RAM Card. Built specifically for the HP 48GX series, this memory card provides essential storage for large programs, complex...Now: $279.99Was: $309.99 -
On Sale
HP-50G Graphing Calculator
Hewlett Packard
Now: $209.99Was: $329.99The HP-50G is one of Hewlett-Packard’s most powerful and versatile graphing calculators, designed for engineering professionals, college students, and anyone needing high-level computational...Now: $209.99Was: $329.99 -
TDS COGO Survey Card and Overlay for HP 48GX Calculators
TDS
$289.99Enhance the capabilities of your HP 48GX calculator with the TDS COGO Survey Card — a powerful surveying and coordinate geometry solution designed for land surveyors, engineers, and field...$289.99 -
On Sale
HP 82240B Enhanced Infrared Printer for HP Calculators
Hewlett Packard
Now: $209.99Was: $239.99The HP 82240B Infrared Printer is a compact, battery-operated thermal printer designed for seamless printing from compatible HP calculators and testing devNow: $209.99Was: $239.99 -
On Sale
HP 48GX Calculator
Hewlett Packard
Now: $379.99Was: $419.99The HP 48GX Graphing Calculator is a powerful, expandable scientific calculator designed for engineers, scientists, and advanced math users. Featuring 128KB of onboard RAM, a large dot-matrix...Now: $379.99Was: $419.99 -
On Sale
HP-48G Graphing Calculator
Hewlett Packard
Now: $259.99Was: $279.99HP 48G Graphing CalculatorHandle advanced mathematics, engineering, and scientific calculations with the HP 48G Graphing Calculator. Designed for students, engineers, scientists, and technical...Now: $259.99Was: $279.99