Welch Allyn/Hillrom Trigger Aneroid (Each)Welch Allyn Hillrom Trigger Aneroid The Welch Allyn DuraShock DS66 Trigger Aneroid Sphygmomanometer is a gear free shock resistant aneroid designed to provide accurate blood pressure readings in a professional environment Configurations SKU Description Product Key Details Welch Allyn Hillrom 5098 31: Tycos Replacement Gauge Standalone replacement aneroid gauge; does not include cuff or bulb. Welch Allyn Hillrom 5098 27: Tycos Adult Aneroid Kit