This wrist blood pressure monitor has undergone clinical testing and verification to ensure the accuracy of measurement readings. The professional blood pressure machine can detect irregular heartbeats/blood pressure/ heart beat at any time. The wrist BP machine supports 2 users data storage, each user for 90 sets(total 180 readings )of data memory. With the built-in storage function, this blood pressure monitors allows you to recall the most recent 180 historical readings that record your health status. The BP monitor has a large LCD backlight display to allow for most accurate readings in 35s. So this blood pressure kit can also read the readings clearly at night. The LCD screen shows you the systolic pressure/diastolic pressure/pulse rate, much clearer for you to read. Our digital blood pressure monitor includes a durable carrying case, complete blood pressure monitor kit, and it is small in size and takes up little space, very suitable for travel.