Semi-automatic type: Pressing the rubber ball by manual pressure, pressurizing to 30~40mmHg higher than the blood pressure value of the testee, and then the instrument automatically exhausts to display the measurement result.

Fully automatic type: Open the switch for automatic pressurization. The factory default setting of the instrument is pressurized to 170mmHg. When the blood pressure of the test subject is too high, it needs to be pressurized twice to 30~40mmHg higher than the blood pressure value of the test subject.

Intelligent: This sphygmomanometer automatically adjusts the pressure of the pressure according to the blood pressure of the person being tested, thus shortening the measurement time and making the human body feel better.

Because the atmospheric pressure range of Yonker sphygmomanometer is: 860-1060hpa, when the altitude is 3000m ≈700hpa, the atmospheric pressure is reduced by 67hpa for every 1000m rise, and the atmospheric pressure is increased by 67hpa for every 1000m. In addition, the actual pressure will vary due to environmental factors and temperature. Please do not hesitate to use the air pressure in your environment.

Follow the three principles of fixed point, timing, and posture. After sitting for 10 minutes, sit with your left hand and do not move.

The correct comparison method is to compare with the mercury sphygmomanometer through the three-way method.

Check whether the battery is installed correctly or not, and whether the battery buckle is loose. If the above problem is not caused by internal chip failure, it is recommended to return to the factory for testing.

Customers are advised to measure three times a day, three hours in the morning, between 2 and 4 in the morning, and one hour in the evening.