Blood Pressure Meter East To Use User friendly design can be suitable for most people, even the senior users can operate if effortlessly by themselves. No need the guidance of others. Advantages: A Large Display B Easy Button Control C Intelligent Measurement D Voice Prompt E Arrhythmia Detection Intelligent Measurement Built-in premium chip can deliver precise measurement and smart voiceprompt, allows you to start taking your blood pressure at home with accuracy. Technical Parameter Operating Temperature: 15%-90% Storage Temperature: -20c-50c Operating Humidity: 40A-R5% Storage Humidity: -20c-50c Show: LCD Digtal display Voltage: 6v Power Consumption: 0.01w Color: Black and White available Special Design Highlight Quality It can fit arm circumferences of 22-32 cm (8.7-12.6 inch) Two way power supply: USD cable and 4*AAA Dry batteries Arrhythmia detection and Heartbeat Detection Use Methods and Cautions 1 Place one finger into it is the most appropiate 2 Palms up, put the wrist bandparalle to the heart 3 Palms up, keep the intake pipe and the arteries parallelled 4 Wrap the wrist band around your arm tightly in the opposite direction paste together. 5 Place one finger into it is the most appropiate 6 Keep the wrist band parallelled to the heart,plam up 7 Press the on/off button, keep relaxed and start measuring 8 High pressure, low pressure pulse instantly displayed after 40 seconds Package included: 1 upper arm blood pressure monitor (Main Unit) 1 Cuff band 1 USB Cable 1 User Manual