The first major innovation in blood pressure devices in 100 years The Welch Allyn Durashock range of hand-held devices provides users with a major benefit - a shock-resistant gauge which can fall 0.9m onto a hard surface and still remain accurate without requiring re-calibration!The product is available in three ranges to provide the right unit for your budget but all offer superb benefits over traditional aneroid gauges.The units come complete with a standard adult cuff but will support a wide range of other sizes for maximum versatility.