目前的真空技术可以实现从1大气压（1000毫巴）到10-12毫巴范围内的真空压力测量，测量范围超过15个数量级。在这一范围内测量压强的仪表被称之为真空规。
THERMOVAC TM 101手持式真空规将上等传感器技术与现代化加工技术相结合，使用灵便。
一般情况下，机械式真空计的压力显示是由作用在隔膜表面的压力决定的。是直接的压力测量（**压力）
The digital compact THERMOVAC TM 101 combines high-quality sensor technology with modern process technology in a handy design. The THERMOVAC TM 101 can operate optionally as a datalogger saving the pressure data during the measurement. Of course a subsequent simple transfer to a PC is possible via a USB. The fully electronic THERMOVAC TM 101 is capable of measuring pressures within the pressure range of 1200 to 5 x 10-4 mbar (900 to 3.75 x 10-4 Torr) (7 decades). By combining a piezo-resistive pressure sensor for the upper and a Pirani sensor for the lower pressure range, the measurements made by the THERMOVAC TM 101 are independent of the type of gas above pressures of 15 mbar (11.25 Torr). Especially noteworthy is the exceptionally long battery life.
Advantages to the User
■ Utilization is directly possible in avacuum■ Measurement range 1200 to 5 x 10-4 mbar (7 decades)■ Adjustable gas type correction factor■ Pressure measurements above 15 mbar (11.25 Torr) are independent of the type of gas■ Pressure unit of measurement selectable between mbar, Torr and Pascal■ Large 4 digit 7 segment display■ Cordless power supply through a standard 9 V battery■ Data logging function with USB interface and internal memory for up to 2000 measured values■ Minimum and maximum memory function■ Online measurements via USB are possible■ Measurement data can be exported by way of ASCII text to Microsoft Excel, for example■ Protection class IP 40
Typical Applications
■ Mobile pressure measurements of all kinds■ Checking and setting up of vacuum systems■ Ensuring operation and quality of vacuum pumps■ Maintenance and service■ Graphic representation of pumpdown curves■ Coating systems■ Pressure measurements - on evaporators and vacuum melting furnaces - in chemical process engineering - on refrigerating and air-conditioning systems before filling in the refrigerant - during the production of gas filled pressurised lamps, respectively refilling■ Leak tests