The Airserco 8990-SM analog high vacuum gauge displays vacuum level from 0 Torr to atmospheric pressure, with 0.1 Torr gradients from 0-20 Torr. It utilizes a gradient display, offering a detailed reading between 0-2000 Millitor (equal to 0-2000 Microns). It is unaffected by changes to ambient temperature, is highly responsive, and operates on 115 volt, 60hz, single-phase power. 230 volt available upon request.
The 8990-SM utilizes the 8970-SM gauge tube / pressure transducer. One gauge tube is included with each vacuum gauge purchased.