Product features:

   Mercury resistance paper is added on the top of the indicator tube to prevent excessive mercury from being used.   Patent on the pressure plate slope of the indicator tube to prevent the upper cover from sticking to the bottom shell after impact (patent design).

Main working principle：

   The measurement site blocks blood flow by inflating and pressing the armband, and then allows the blood to flow again by releasing the gas in the armband.   Blood pressure is measured by the sound of blood flow or the vibration of blood vessels when the blood flows again.

Main materials:Aluminum plate, mercury, latex

Technical parameters：

   Measurement range: 0~300mmHg(0~40kPa)   Basic error: + / - 3.75mmHg   Sensitivity: greater than or equal to 2.25mmhg

Remark:, after the end of the sphygmomanometer using 45 ° inclined to the right first and then close the bottle mercury switch.

\"Please read the product manual carefully or purchase and use it under the guidance of the medical staff\".