SMI surveying card overlay for HP 48 (48S, 48SX, 48G, 48GX) calculators. We have white, transparent, Survey GX, Survey Pro, and SMI Surveying overlays. We can reproduce any other overlay that you desire as well.
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Transparent overlay for HP 48 (48S, 48SX, 48G, 48GX) calculators. You can use a pencil or pen to write on it. This is of use if you write your own programs for the HP 48 and assign them to various keys.
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Letter format.
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Its advanced features and durable design make it a sought-after collector's item for those interested in retro technology.
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SMI Plotting Overlay for HP 48GX Calculator Just the overlay, no data card. Excellent condition
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The HP 48 Handbook. Letter format.
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