It includes the function of vacuometer, atmospheric pressure altimeter, thermometer (environment) and pressuremeter (for example the standard pressure meter of sphygmomanometer calibration).
介种便携、数字式的多用途仪器,它具有真空度计、压高度计、(周围环境)温度计以及压力计(例如可准血压计的标准器)等功能。