Ultima X Series Gas Monitors with X3 Technology provide continuous monitoring of combustible and toxic gases and oxygen deficiency. X3 Technology is "X to the Power of 3" and brings multi-sensing, signal boost and ModBus output to the Ultima X Series Gas Monitors. The technology allows three sensors to be inputted into one Ultima X Gas Monitor and provides a ModBus RTU output. Each sensor can be remoted up to 3,000 feet from the monitor. Any combination of electrochemical, catalytic, and infrared-type sensor is available, making it a perfect match for all applications and industries.