This product works in accordance with the Riva Rocci /Korotkoff measurement tradition methods. Required pressure in the cuff a puar is obtained by the action of the pump. The pressure relief valve is subject to fine adjustment and guarantees a controlled reduction of the pressure of the cuff during measurement.
The reading scale has a measuring reach of 0-300 mmHg. The unmistakable measurement on the measurement reach is +/- 3 mmHg.