The 358501-020-T1 Granville-Phillips® Micro-Ion® Vacuum Gauge Controller is designed to obtain the highest performance from Granville-Phillips® Micro-Ion® Gauges. It is capable of measuring from a lower limit in the 10-10 Torr range to 5x10-2 Torr. Pressure measurements are extended to Atmosphere with the included Convectron® Vacuum Gauge card. A capacitance manometer card is also included. This reliable vacuum gauge controller is compact and easy to use. The extruded aluminum, half-rack design fits easily into your control rack. Infrequently used controls are located behind the front panel door to provide an uncluttered appearance. Large, bright green, flicker-free LED digital displays make measurements easy to read - even from a distance. It includes 120V power plug for use in North America or Japan.