Stack Monitoring System


Monitoring stacks in industrial settings is crucial for ensuring compliance with air quality regulations and identifying potential environmental hazards. A reliable Stack Online Monitoring System provides real-time data on emissions, enabling timely intervention to prevent pollution and ensure the safety of surrounding communities and ecosystems.

Why Choose PT Ecological Services?

PT Ecological Services offers a comprehensive Stack Online Monitoring System designed to meet the specific needs of industrial facilities. With over 15 years of experience in environmental management, our team of experts ensures that our monitoring systems provide accurate data and reliable performance. We prioritize customer satisfaction, compliance with regulations, and environmental responsibility in all our solutions.


  • Magnificently easy and secure platform: Developed by ECOLYSER, this platform allows easy and secure access to data from registered devices.
  • Compact design: The device is compact yet capable of determining precise individual parameters such as NOx, SO2, CO, CO2, and O2, along with metrological parameters like wind speed, wind direction, temperature, and relative humidity (RH).
  • Robust shelter: Built to withstand severe conditions, ensuring reliable operation even in harsh environments.
  • Built-in automatic temperature dispenser: Ensures exact and stable readings without being affected by excessive humidity or temperature, minimizing inaccuracies.
  • Future-ready key aspects: Includes features like remote data collection and one-touch evaluation of data flow through area grid installation, enabling precise prediction of heat maps and pollution mapping.
  • Ultrafast processing system: Offers maximum uptime and 24×7 support from HORIBA, ensuring continuous monitoring and assistance.
  • Multi-parameter environmental grid monitoring station: Specialized instrument for urban grid environment pollution, providing comprehensive data for environmental assessments and management.
Model name ENDA-5000
Measurement method NDIR
Measurement range 200-500ppm
Measurement repeat 0.5%FS
Frequency 50/60Hz
Power Supply Ac 100 -+ 15V (85V-115V)
Power consumption About 800VA
Enclosure Independent outdoor installation
Measurement interval Within 60seconds (Td+T90 from equipment intake area) (sample flow0.6L/min) (within 240 seconds for SO2 only)
Output DC4 to 20mA (absolute output) (DC 0 to 16mA/ DC 0 to 1V/DC 1 to 5V optional) Max.12 Output systems
Material SUS-316 stainless steel, SUS-304 stainless steel, Teflon, polypropylene, polyethylene, flour rubber, PVC, PVDF and glass
Real monitoring in Industrial areas
Deriving heat maps for future trends.
Environmental monitoring in commercial communities and small cities.
No need for optical adjustment.
A stable zero point.
Cross flow modulated non dispersive infrared (NDIR) detection is renowned for long term stability.
Continuous cleaning keeps the cell clean.
An interference compensation detector compensates for interference from H2O during NOx and SO2 measurement.
A CO2 sensor constantly measures and makes corrections to compensate for CO2 interference in NOx measurements.

The ENDA-5000 series by HORIBA is a measuring unit designed for stack gas analysis. This device provides continuous, simultaneous, and highly precise measurements of NOx, SO2, CO, CO2, and O2. It’s utilized for monitoring emissions from stack facilities, conducting air quality assessments, and evaluating the effectiveness of pollution control measures.


Yes, our monitoring system is capable of detecting a wide range of pollutants, including particulate matter, sulfur dioxide, nitrogen oxides, volatile organic compounds, and other harmful emissions. We tailor the system to meet the specific monitoring requirements of each industrial facility.

Absolutely! Our Stack Online Monitoring System is designed to meet or exceed regulatory standards set by authorities such as the Central Pollution Control Board (CPCB) and state pollution control boards. We ensure that our systems undergo rigorous testing and calibration to maintain accuracy and compliance with environmental regulations.