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Gas & Flame Detection

Z-Gard® S MPO Single Gas Sensor

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The Z-Gard S MPO Gas Sensor connects directly to a building automation system for single gas monitoring solutions. It detects the presence of either carbon monoxide, nitrogen dioxide or combustible gases in air. The Z-Gard MPO Sensor communicates with one of several industry standard protocols, providing seamless integration with commercial automation systems.


  • Five sensor output options:
    • BACnet MS/TP
    • Modbus RTU
    • Modbus ASC
    • Z-Gard
    • APOGEE P1
  • Multifunction-LED for sensor status on fault, calibration and normal operation
  • Easy, non-intrusive one-person calibration of zero and span
  • All metal construction
  • Field-replaceable gas sensors



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From application engineering, valve configuration, to performance testing, supply chain management and aftermarket support, we cover any specific industrial needs.