Previous page Build-in Smart Chip Close to the results measured in the hospital The use of intelligent pressurization technology allows you to comfortably complete the measurement. Track Blood pressure 2*99 Sets of Memory for Two User Record and recall up to 99 sets of data per user. Daily Measure Know your blood pressure data and keep health One-button operation allows you to measure blood pressure alone at home. Next page 1 Accurate Measure 2 Memory Storage 3 Home BP Monitor The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Previous page Comfortable Cuff Soft comfortable cuff fits upper arms from 8.7" - 17.3" in circumference. Dual Model 2*99 sets of memory for per user Two Power Supply 4*AAA Batteries or use type-c to plug in Next page 1 Comfortable Cuff 2 Dual Model 3 Two Power Supply Technical Specifications Measuring Method Oscillometric Accuracy ±3mmHG for BP; ±5% for PR Cuff Size Fits arm circumference 8.7"-17.3" Weight 294g Dimensions 5.6in(L)*4.5in(W)*2.8in(H) Power Supply 4*AAA Batteries or Connect USB Cable Display LCD Digital Display 1.The measure reading is not accurate? 1.Sit still for five minutes before measurement. 2.Put your arms out in front of the table with your palms up and your fingers soft. 3.Keep the sphygmomanometer at the same height as the heart. What is the power supply of the blood pressure monitor? 4*AAA Batteries or Connect USB Cable(batteries 4 x AAA are not included considering environmental reason) How do you change the setting from kPa 0.00 to mmHg 0? Long press START/STOP button for 15 seconds in sleep mode. If the default setting is kPa,press 'M' button,it will change into mmHg, Then press START/STOP button to save the data. What about the blood pressure cuff size? This high blood pressure monitor is suitable for standard and large adult arms from 22 cm (8.7 inches) to 44cm (17.32inches). How to delete the old records? When viewing the memory, press and hold the [MEM] key while holding down the [START / STOP] key for 2 seconds. When the screen displays all "-", the memory will be deleted.