Welch Allyn/Hillrom-5090-41CB Tycos DS48 Pocket Aneroid Sphygmomanometer, Premium Inflation Bulb and Valve, Size-12 Large Adult, Reusable (Two Piece), 2-Tube Cuff, Zipper Case (Each)Welch Allyn Hillrom 5090 41CB Tycos DS48 Pocket Aneroid Sphygmomanometer,Premium Inflation Bulb and Valve, Size 12 Large Adult, Reusable (Two Piece), 2 Tube Cuff, Zipper Case. The Welch Allyn Tycos DS48 Pocket Aneroid Sphygmomanometer is a small pocket style gauge that features a metal clip that attaches to the cleat on a two tube FlexiPort cuff. Warranty: Materials and Workmanship: 10 Years. Calibration: Lifetime. The Welch Allyn Tycos DS48 Pocket