TDS STD Survey Card for HP-48GX retail price: $699.00 dc.com price: $499.00 TDS Tripod Bracket for Environmental Case retail price: $60.00 dc.com price: $55.00 Instrument cable retail price: $60.00 dc.com price: $55.00 PC interface cable retail price: $15.00 dc.com price: $15.00