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Graphing

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.

Our offerings include well-known models from leading brands such as Texas Instruments, Casio, and HP, all of which have undergone stringent testing and refurbishment processes to ensure quality and effectiveness. With the rising costs of new devices, Porter Electronics provides a budget-friendly alternative that does not compromise on performance. Each refurbished calculator goes through detailed inspections, ensuring they meet our high standards for both functionality and durability.

Within this category, you'll find a variety of models, including the HP-48G and HP-50G graphing calculators, along with accessories such as enhanced infrared printers and RAM cards specifically designed for the HP 48GX. These tools enable advanced calculations, data storage, and seamless printing, catering to a range of mathematical needs, from calculus to statistical analysis.

Choosing a refurbished graphing calculator from Porter Electronics means investing in a quality product that supports your academic or professional pursuits while making smart financial decisions. Dive into our collection and discover how upgraded graphing capabilities can enhance your work, all at a fraction of the cost of new calculators. Experience efficiency, precision, and affordability with our extensive assortment of refurbished graphing calculators, designed to help you excel without overspending.
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  • HP ORIGINAL Soft Case for HP 50G/48G/48G+/48GX/49G+ Graphing Calculators

    ORIGINAL Soft Case for HP 50G/48G/48G+/48GX/49G+ Graphing Calculators

    HP

    $12.00
    ORIGINAL Soft Case for HP 50G/48G/48G+/48GX/49G+ Graphing Calculators - Listing is for a previously used original HP case in great condition.
    $12.00
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  • TDS Surveying GX Card for use with HP 48GX Calculator

    TDS Surveying GX Card for use with HP 48GX Calculator

    TDS

    $289.99
    TDS Surveying GX Card for use with HP 48GX Calculator -  IN STOCK and ready to ship. This is a refurbished item that comes with a 90-day exchange warranty. Product Details - Unlock advanced surveying capabilities with the TDS Surveying GX...
    $289.99
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  • On Sale
    HP 512K RAM Card for HP 48GX Calculators

    TDS 512K RAM Card for HP 48GX Calculators

    HP

    Now: $259.99
    Was: $289.99
    TDS 512K RAM Card for HP 48GX Calculators -  IN STOCK and ready to ship. This is a refurbished item that comes with a 90-day exchange warranty. Product Description - Enhance your HP 48GX calculator's performance with this 512K RAM...
    Now: $259.99
    Was: $289.99
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  • On Sale
    Hewlett Packard HP-50G Graphing Calculator

    HP-50G Graphing Calculator

    Hewlett Packard

    Now: $219.99
    Was: $309.99
    The HP 50g Graphing Calculator is a powerful and feature-rich tool designed for engineering, mathematics, and science professionals. Offering both RPN (Reverse Polish Notation) and algebraic entry, the 50g provides flexibility in solving complex...
    Now: $219.99
    Was: $309.99
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  • TDS COGO Survey Card and Overlay for HP 48GX Calculators

    TDS COGO Survey Card and Overlay for HP 48GX Calculators

    TDS

    $289.99
    Enhance your HP 48GX calculator with the TDS COGO Survey Card and Overlay, the trusted solution for professional land surveying, coordinate geometry (COGO), and field data collection. Developed by Tripod Data Systems, this plug-in card delivers powerful...
    $289.99
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  • On Sale
    Hewlett Packard HP 82240B Enhanced Infrared Printer for HP Calculators

    HP 82240B Enhanced Infrared Printer for HP Calculators

    Hewlett Packard

    Now: $209.99
    Was: $239.99
    The HP 82240B Infrared Printer is a compact, battery-operated thermal printer designed for seamless printing from compatible HP calculators and testing devices. Utilizing infrared communication (Redeye protocol), it eliminates the need for cables while...
    Now: $209.99
    Was: $239.99
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    Now: $209.99
    Was: $239.99
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  • On Sale
    Hewlett Packard HP 48GX Calculator

    HP 48GX Calculator

    Hewlett Packard

    Now: $359.99
    Was: $399.99
    The 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 display, and support for Reverse Polish Notation (RPN), the...
    Now: $359.99
    Was: $399.99
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  • On Sale
    Hewlett Packard HP-48G Graphing Calculator

    HP-48G Graphing Calculator

    Hewlett Packard

    Now: $239.99
    Was: $259.99
    The HP 48G Graphing Calculator is a powerful and reliable tool designed for students, engineers, and professionals in mathematics, science, and engineering fields. With its advanced features, high-resolution display, and support for Reverse Polish...
    Now: $239.99
    Was: $259.99
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