What type of batteries are commonly used in blood pressure monitors?

Will use single or dual batteries, common battery models include AAA, AA, C, D. AAA model battery can be 1.5 volts, AA model battery can be 2.4 volts, C model battery can be 3.0 volts, D model battery can be 6.0 volts, the specific model can be seen in the product details. Corrective Blood Pressure Meter is a medical device used to measure the blood pressure of human body; it can help doctors to better determine the patient's blood pressure level, and also help the patient to understand their own blood pressure situation and better control their blood pressure.