I want to buy an instrument for lowering blood pressure. I looked it up and had different opinions. If you have any used friends, can you introduce them? What brand is better? About price?

If there is no antihypertensive drug, it is all a lie. Don't be cheated. Only a blood pressure meter. Shanghai Yutu brand sphygmomanometer is better, which is available in many hospitals and retail in pharmacies. You can consult them. In addition, the sphygmomanometer should be calibrated regularly, and the hospital should calibrate it once every six months. For home use, it is recommended to send it to the local metrology bureau for calibration, so as to accurately measure blood pressure.