Pro’s Combo II Kit combines the 768 series pocket aneroid with the Adscope Sprague 641 in a color coordinated premium nylon carry case. Stethoscope can be used with adults, children and infants. Threaded chest piece has two interchangeable diaphragms and three bells for detection of high-, middle- and low-frequency sounds. Double tubing for acoustic separation. Features Combines ADC's Prosphyg 768 with an Adscope Sprague 641 and deluxe carry case Contemporary black enamel 300mmHg manometer Adcuff calibrated nylon cuff with proprietary Size Guide marking system prevents mis-cuffing Chrome-plated deflation valve Complete aneroid, matching case, and color-matched Sprague stethoscope Extra large, color-matched, dual pocket carry case, measures 9” x 5” x 2” Assembled, inspected, and packaged in the U.S.A. from foreign components Meets or exceeds ANSI/AAMI/ISO 81060-1 Includes 1 pair of mushroom eartips, 1 pair of rubber eartips, and 10 L x 6 W x 3 D color-coordinated, nylon carrying case. Specifications Sphyg Type Pro's Combo Gauge 808 Gauge Warranty 20 Yr Sphyg Accuracy /-3mmHg 50 C 104 C Sphyg Accuracy at extended temperature range /-3mmHg or 2% whichever is greater 104 C Storage Temp 4 F 20 C 131 C Valve Type Standard Number of tubes 2 Tubes Cuff type ADCUFF Cuff size Adult Cuff Range 23-40cm Inflation Warranty 3 Year Zipper case 888DG Warranty 3-year inflation system warranty and 20-year calibration warranty. 1 Each / Each