DS58-MC Welch Allyn DS58 Family Practice KitDS58 MC Welch Allyn DS58 Family Practice Kit Maintain accurate blood pressure readings with lower lifetime cost. Incorporating our gear free, shock resistant DuraShock Technology, the Welch Allyn Tycos DS58 Classic is one of three premium models in the new Welch Allyn platinum series product range. With an ergonomic design for optimal comfort and a lifetime calibration warranty, you can count on the DS 58 to hold up to the way you work and give you