| Granville Phillips 340 High Vacuum Hot Cathode Ion Gauge Controller
These Granville Phillips (Model 340) high-vacuum ion gauge controllers can be ordered to operate a hot cathode ion and dual convectron gauges. The hot cathode ion gauge measures high vacuum pressure from 10-3 to 10-10 Torr while the convectron sensors are typically used to measure roughing line vacuum pressure from atmosphere to 10-4 Torr. Please call to check availability and get pricing options for these refurbished Granville Phillips 340 ion gauge controllers. Cables and ion gauge tubes are available but sold separately.