HP 48SX Scientific Calculator/Tripod Data Sys TDS-48 W/Survey SX + 128K Ram Card
HP 48SX Scientific Calculator/Tripod Data Sys TDS-48 W/Survey SX + 128K Ram Card. Powers on great, a little corrosion inside the battery compartment b ut should easily clean up. The RAM card needs a new battery. COmes exactly as you see it!