Measures systolic diastolic & heart pulse Large easy to read LCD display Mains or battery powered Stores up to 3 different people results for up to 30 measurements Simple automatic operation Ideal for measuring your blood pressure in the comfort of your own home or when travelling for people who need to keep an eye on their blood pressure including keep-fit enthusiasts. Simply place the cuff correctly on the arm switch on the unit by pressing the start key & the unit will inflate the cuff automatically. The unit will then display your systolic diastolic & heart pulse. The memory is capable of storing up to 3 different peoples results for up to 30 measurements along with the time & the date the measurement was taken making it ideal for the whole family. It can be powered by either mains adaptor sold separately or by 4 x AA batteries supplied.BNote Please read important Health Warning before purchasing or using this product.