Multi Gas

ZG9 Series

  • Dual Beam NDIR technology is used to measure CO2 concentration
  • Measurement items:
    1. Basic: CO2, CO, PM2.5, PM10, RH, DP, AMB, Barometer
    2. Optional: O2, NH3
  • Audible Alarm
  • Data Logging with SD Card
  • RS485 Communication Interface
  • Rechargeable Battery
  • ZG9 Series
  • ZG9 Series
  • ZG9 Series
    Relative Humidity
  • ZG9 Series
    SD Card
  • ZG9 Series
  • ZG9 Series


  • ZyAura ZG9 series, featuring an ergonomic design and innovative NDIR technology, is the Handheld Multi Gas detector for the measurement of CO2, CO, PM2.5, PM10, and other indexes to monitor indoor quality. With long-term data storage and RS485 communication interface, ZG9 series provides accurate, reliable measurements is ideal for personal or industrial applications, including office, station, food industry, HVAC, commercial building, or home usage.
    general intro

    Indoor Air Quality (IAQ) is measure for the quality of air in interiors, the comfortable indoor environmental quality can make people feel fresh, work efficiency and good for the health. The CO2 concentration is the important factor of good indoor air quality. People breath in oxygen and breath out CO2, nowadays people often close the windows to avoid noise and enjoy the comfort living and working environment provided by air-conditioning systems, which results in the fact that the indoor concentration of CO2 is far higher than outdoor average. With the high CO2 concentration and non- proper ventilation, people will feel headaches, dull, drowsiness, lose of concentration and correspond to the high levels of dust, chemicals and bacteria in the air.

    • CO2 Measurement Range: 0~9,999ppm(5,001~9,999ppm over range)
    • CO2 Accuracy: 0~5000ppm: ±(50ppm+3% of reading)
    • CO Measurement Range: 0~1,000ppm
    • CO Accuracy: ±10ppm or 5% of reading, whichever is greater
    • PM2.5/PM10 Measurement Range: 999 μg/m³
    • PM2.5/PM10 Accuracy: ±15% or ±15 μg/m³, whichever is greater
    • O2 Measurement Range(optional): 0~25%
    • O2 Accuracy(optional): <2% FS/0.1 mbar
    • NH3 Measurement Range(optional): 0~100ppm
    • NH3 Accuracy(optional): ±10%
    • RH Measurement Range: 0~100%
    • RH Accuracy: ±3%@25°C (20% RH~80% RH), others ±5%
    • Temperature Measurement Range: 0°C~50°C
    • Temperature Accuracy: ±1°C
    • Operating Conditions: 
      1. 0°C~40°C(32°F~104°F), 0~95%RH, non-condensing, with lithium-ion batteries
      2. 0°C~50°C(32°F~122°F), 0~95%RH, non-condensing, without lithium-ion batteries
    • Power Supply: 
      1. Rechargeable Battery (not included): Li-ion 3.7V Unprotected Button top 18650 battery *3 (L65~67mm , Ø18~19mm)
      2. USB or 5 VDC AC adapter(not included)
    • Comm. Interface: RS485 ModBus BR19200、N、8、1
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