Sphygmomanometer. This unit offers a calibrated nylon Accumax cuff with color coordinated mamometer which measures pressure from 20mmHg to 300mmHg. Deluxe inflation system has a two tube, latex bladder and a large, knurled air release valve for precision deflation. Deluxe end valve reduces dust build-up. Comes complete with zippered leatherette carrying case and instruction manual. Lifetime Calibration Warranty. Child