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Intelligent Online Odor and Malodor Concentration Monitoring System

This system employs a matrix of smart gas sensors combined with cross-interference compensation algorithms to monitor multiple odor-causing compounds in real time and calculate odor intensity (OU value). Ideal for odor-prone sites such as wastewater plants, landfills, and chemical industrial parks.
 
Features:
1.Simultaneously detect over 10 odorants and outputs dimensionless OU values;
2.Integrated temperature/humidity compensation and constant-flow control for higher accuracy;
3.Support remote data transmission and integration with environmental regulatory platforms.
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  • TrAQMS-OU

  1. Multi-sensor fusion (electrochemical + PID + MOS) for comprehensive odor profiling;

  2. Sheath gas protection and dual-stage filtration extend sensor life;

  3. Compliant with China’s HJ212-2017 standard and CCEP certified;

  4. Expandable to monitor conventional pollutants like NOx, SO₂, and VOCs.

  1. Target Gases: NH₃, H₂S, CH₃SH, (CH₃)₂S₂, (CH₃)₃N, styrene, TVOC, etc.

  2. OU Range: 0–500 (dimensionless)

  3. Gas Measurement Range: (0–50) ppm (inorganic gases)

  4. Resolution: 0.001 ppm

  5. Data Upload Interval: Every 3 minutes

  6. Communication: 4G + HJ212-2017 protocol

  7. Protection Rating: IP53

  8. Power: 220V AC, 50Hz

  9. Operating Temperature: -30°C to +70°C

  1. Odor monitoring around wastewater treatment plants and pumping stations

  2. Emission control at landfills, incinerators, and livestock farms

  3. Air quality early-warning at chemical park boundaries

  4. Environmental protection in sensitive areas (schools, hospitals, parks)

  5. Odor source tracing at material yards, ports, and new-material factories

Frequent Questions
  • 1. What is OU value and how is it calculated?
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    OU (Odor Unit) is a dimensionless indicator of odor intensity. The system calculates it using a proprietary algorithm based on multi-sensor array data.
  • 2. Can it connect to government environmental platforms?
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    Yes. It complies with the HJ212-2017 communication standard and can directly interface with national or local environmental monitoring systems.
  • 3. How long do the sensors last, and is maintenance difficult?
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    Sensor lifespan is ≥2 years. With self-diagnostics and dual filtration, routine maintenance is simple and infrequent.
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