Description
[Professional manual sphygmomanometer]: Accurate measurement adopts dual scale display, which can clearly read and accurately understand your blood pressure data!.[Key structure of mercury column sphygmomanometer-mercury valve]: The mercury valve is a part that many people are used to ignoring. Remember to switch this valve at the beginning and end of blood pressure measurement! Use more safe and accurate!.[Working principle]: Inflate the armband to compress the measurement site to block blood flow, and then discharge the gas in the armband to make the blood flow again. Blood pressure measurement is based on the blood flow sound or blood vessel arm vibration changes when blood flows again..[Detailed design]: Add mercury-blocking paper on the top of the test tube to prevent the leakage of improper use of mercury, safe use!.[Simple and Easy To Use]: Everyone can use it and take care of family health, easy to read blood pressure measuring instrument without liquid barometer shows big easy to read numbers perfect for people with poor vision..Number of items: 1
