The 274B Three-Channel Sensor Multiplexor allows a single signal conditioner to operate as many as three (3) high-accuracy Baratron® sensors. The 274B provides heater power for the temperature-controlled sensors (AA06A, AD06A, 590, 690, and 698), keeping all sensors at their specified operating temperature and waiting for selection for readout on the 670B signal conditioner. It can be used with the new AA06A & AD06A sensors as well as the 615, 616, 590, 690, and 698 high-accuracy Baratron® Capacitance Manometers and 670 Signal Conditioner. The 274B is CE marked, operates on standard 115V/230VAC input voltages, and fits into a standard 1/2-rack opening.