It includes the function of vacuometer, atmospheric pressure altimeter, thermometer (environment) and pressuremeter (for example the standard pressure meter of sphygmomanometer calibration).
医学百科 The Medicine Book (Big Ideas Simply Explained)
In the 1890s, the new cuff sphygmomanometer, an inflatable armband for measuring blood pressure, gave doctors a powerful diagnostic tool when assessing the health of the heart.
She was an astonishingly hard worker and made her first recorded invention - a sphygmomanometer that would draw a graph of a person's pulse. After graduating she carried on teaching and inventing.