The Wolpro Blood Pressure Monitor Arm WOLBP01 offers easy-to-read display and USB port for convenience. Accurate and fast measurements with WHO function and large LCD display. Ideal for home use. Key Features Easy to read display USB port Safe, fast, and accurate Large LCD display Automatic measurement 90 sets memory Pressure measurement Heart rate indicator WHO function Cuff size 22-42cm Materials: Plastic Casing/Monitor Unit, Nylon/Polyester Cuff with rubber bladder, Electronic Sensors, Air Pump.Innovative healthcare solutions bridging the way to wellness.Sit down and rest for 5 minutes. Place the cuff on your bare upper arm, 1?2 cm above the elbow, ensuring the tube is centered. Press the START button and remain still and quiet during the measurement.Medical Device: For self-monitoring; do not use the device to diagnose or treat health problems without consulting a doctor. Avoid talking or moving during measurement.