GM100 Combined CO/NO2 Monitor

Enclosed Car Park Gas Detection – Designed to meet EN 50545-1

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The GM 100 is a dual CO/NO2 detector designed to protect enclosed spaces from hazardous vehicle exhaust emissions. Engineered specifically for car parks, maintenance bays, emergency service stations, wash bays, and similar environments, this 24V powered detector supports RS485 BACnet MS/TP or Modbus RTU communication for seamless integration. Its on-site configurable parameters allow engineers to tailor settings to project-specific requirements, reducing the need for additional hardware and simplifying installation for controls contractors to ensure proper sequencing of operations.

The GM 100 features two alarm levels, line voltage relays with adjustable time delays, a selectable audible alarm, and an LCD display providing real-time information on power status, alarms, gas type, concentration levels, address, and fault conditions. The GM100 features an end of life indicators and replaceable plug and play sensor cartridges.

Suitable for both indoor and outdoor use, it should be installed in a sheltered location if placed outdoors, ensuring protection from direct sunlight, rain, and extreme conditions.

Single CO or single NO2 detectors also available.

For more information, please contact S&S Northern Ltd.

  • Single or dual gas monitoring.
  • Replaceable, plug-and-play smart sensor modules.
  • Non-intrusive calibration
  • Splash guard accessories for improved IP rating
  • Modbus RTU or BACnet MS/TP (field selectable).
  • 0-10V or 4-20mA output (field selectable).
  • 24V AC/DC power supply.
  • Display screen and RGB LED status indication.
  • Configurable audible alarm – 85dB.
  • Operating Temperature -20° to 50°C.
  • Gas Performance UL2075 (CO & NO2).
  • Supplied calibrated.
  • Strong anti-interference circuit boards and RoHS compliant.
  • Corrosion-resistant enclosure with optional accessories.
  • Indoor & outdoor use.
  • Covered by 3 Year Warranty.