The Welch Allyn 5098-23CB Tycos Classic Style Hand Aneroid Family Practice Blood Pressure Kit and Bladder Combination offers unsurpassed reliability in a traditional, hand-held design. Nearly one hundred years of experience designing and building the most accurate and durable aneroid sphygmomanometers in the world. With a tradition of delivering true customer value and a high level of customer service, Tycos is the only aneroid sphygmomanometer that is manufactured in the United States. FEATURES: Certified accuracy to ??3 mmHg. Mercury-free and latex-free for safety. Jeweled movement for long life. Laser-engraved dial face for accuracy. Ergonomic design works well in right or left hand. Luer lock for easy cuff-size changes. One-piece cuff is more durable and easier to use. Thermally treated diaphragm maintains calibration. Zinc die-cast housing for mechanical stability. Recessed dial face reduces parallax. Protective zipper case. Lifetime calibration warranty. Warranty: Lifetime wa..