Handcrafted Since 1971 | Three-Year Warranty | Lifetime Calibration | Latex Free. Whether at home, in the office, or on the road, the MDF 808 Calibra Pro Aneroid Sphygmomanometer + Stethoscope is a traditional, easy-to-use blood pressure instrument that offers the convenience, portability, accuracy, and trouble-free operation ideal for home practitioners and self-administering users. Gauge: A precise, certified 300 mmHg manometer attains the accuracy of +/- 3 mmHg without pin stop, and features an easily identifiable high-contrast dial. Cuff & Inflation Bag: Resistant to abrasion, chemicals (chlorine and peroxide), and moisture, the adult Velcro D-ring cuff is constructed of high-molecular polymer nylon and has an attached matching MDF 727 Single Head Stethoscope. Sized to meet American Heart Association recommendations, the artery indicator label and index range. Included Accessories: Spare diaphragm, extra set ComfortSealt eartips, nylon zippered carrying case and ID tag.