ADC Diagnostix™ 700 Pocket Aneroid SphygmomanometerThe 700 series features: Chrome plated precision crafted 300mmHg manometer Luminescent dial features bold numerals and extended graduation marks for easy reading in all light conditions and from virtually any angle Adcuff nylon cuff with ADCs proprietary Size Guide marking system prevents mis cuffing Adflow filter screen check and deflation valves reduce dust build up Adflow chrome plated brass air release valve with micro threads for precise