The world's first digital aneroid sphygmomanometer. The e-sphyg replaces your mechanical gauge and its fragile, vulnerable design, with a virtually indestructible, digital instrument that can stand up to the toughest use. The E-SPHYG features: > Virtually indestructible design can withstand repeated drops of 5 feet or more > Extra large backlit LCD with 7/8” digits, is easy to read in virtually any light > Splash resistant housing for use in harsh environments > Swivel cuff clip allows the manometer to be re-positioned for easy viewing > Auto off function conserves battery strength > Dual low battery warnings > Recalibration reminder after 10,000 cycles (recalibration is free for the life of the instrument) > Systolic assist alerts practitioner to the onset of Korotkoff sounds – makes a great training aid > Deflation rate display promotes proper technique in accordance with AHA guidelines > Pulse rate display at completion of measurement > Manometer works with virtually every cuff on the market > Requires familiar and trusted manual auscultation to obtain blood pressure readings (use of stethoscope) > 2 “AAA” batteries (included) > Lifetime calibration warranty > Available in Adult, Infant, Child, and Large Adult sizes and a variety of colors! > Latex-free option