Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Thigh 15.9" - 25.7" * The diaphragm, gears, springs, and linkages - the very components that make an aneroid vulnerable to shock, vibration, over-inflation and were removed - and replaced with electronic pressure sensors, IC chips and a backlit extra large, easy to read, liquid crystal digital display * Shock resistant * Easy to read in daylight as it is in a dark room * Displays deflation rate to promote more accurate measurements * It is so efficient it gets up to 1500 cycles on two "AAA" batteries * It provides two battery strength warnings - advance and urgent to ensure you never lose power at an inopportune time * It will work with virtually every major brand of blood pressure cuff on the market * It has a "systolic assist" that will alert you about 20mmHg before the onset of Korotkoff sounds * A pulse monitor that will display pulse rate once measurement is complete * It will remind you to check calibration once per year or every 10,000 cycles, whichever comes first * This instrument will turn itself off to conserve battery strength * Used with stethoscope (not included) * Lifetime calibration warranty *