New X3™ Technology from MSA brings multi-sensing, signal boost and ModBUS output to MSA’s Ultima® X Series Gas Monitors. X3 Technology ("X to the Power of 3") allows three sensors to be inputted into one gas monitor. Each sensor can be remoted up to 3,000 ft. from the monitor. Any combination of electrochemical, catalytic and infrared type sensor is available.MSA Instrument Division, Pittsburgh, PA.