Manual Arm Sphygmomanometer Blood Pressure Gauge with Stethoscope Measure Device Health Monitors

Features: 

Small size, handy and portable;
The effect was the same as the mercury sphygmomanometer, and a mercury free design was used to measure blood pressure;
Safe and reliable, widely applicable to family users;

Specifications:

Color: as shown
Head material: aluminum alloy
Straps material: nylon 
Ball and bag material: PVC
Quantity: 1 set
Size: about 50.5 X 15 cm/19.88 X 5.91"
Measurement range:0-300mmHg (0-40kPa)

Matters needing attention in measuring blood pressure:
Blood pressure should be measured in a quiet environment,because the body's blood pressure is changing all day, it should be measured at the same time of the day. 

The subjects should be quiet in a relaxed state, and it is best not to talk and be active. 

It is good to wear loose clothes to measure.