High Quality NEW!!! Dimensions: 17.8 x 12.8 x 9 cm Weight: 580 g Specifications: Pressure range: (0 ~ 290) mmHg /(0 ~ 39) kPa Printing accuracy: ± 3 mmHg / ± 0.4 kPa Pulse accuracy: + 5% Pulse range: (40 ~ 199) times / min Cuff size: 22 ~ 42cm (9" ~ 17") Accurate & Reliable - Advanced measurement technology gives you highly accurate readings. The accuracy ranges are: ±3 mmHg / ±0.4 kPa (blood pressure) and ±5%( pulse rate). Two User Mode - Two users have their own independent measurement records, each user can record up to 90 measurements. Helps users to easily record their blood pressure & heart rate according to the specific time & date for subsequent viewing. Easy to use - One-button Measurement Fully automatic measure blood pressure & heart rate pulse with one button. Average Reading - Support the average reading of the last three measurements. Arrhythmia Indication - Indicates if irregular heartbeat is detected. Cuff Detection - Automatically detects if the arm cuff is properly connected & worn. Backlit LCD Screen Easy to Read - Equipped with a black backlit LCD display screen that makes it easy to read even in the dark. Wide-Range Comfort Large Cuff - 22 ~ 42cm (9" ~ 17") large cuff, adjustable size comfort cuff design to accommodate both medium and large arm circumferences range. Built-in Lithium Battery & USB Port for Charging - Rechargeable lithium battery can be recycled & no need to buy extra batteries, USB port is designed to be convenient to charge at any time.