TDS 48GX Survey Pro overlay for HP 48 (48S, 48SX, 48G, 48GX) calculators. This is a replacement overlay for use with TDS Survey Pro cards.

Overlay only; calculator and survey card not included.

If you prefer a different overlay, see our other auctions.  We have white, transparent, Survey GX, Survey Pro, and SMI Surveying overlays.  We will combine shipping.

From reliable seller and HP Dealer since 1993 Samson Cables.  Check out our other auctions.