The Series 943 displays pressure from 10^-10 to 10^-2 Torr using a high visibility LED display. Two types of analog output are standard for remote monitoring of pressure. An internal converter provides output that allows a simple log conversion from voltage to pressure over the entire operating range. A fast responding, buffered analog output is also provided. Front panel functions allow the user to disable the high voltage, as well as set a pressure at which the cold cathode will automatically turn off. This prevents the controller from displaying incorrect readings when the pressure goes above the operating range of the sensor.