Diagnostix E Sphyg Thigh Digital Manual Dynamometers Accessories Thigh High * Sun Bronze 16 7136 Thigh High * Sun Bronze * Small * Shoe size 4 Moisture proof film molds to surface 7 * The diaphragm gears springs and linkages the very components that make an aneroid vulnerable to shock vibration and over inflation 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 *