NDIR CO2 Gas Detection System

NDIR CO2 gas detection systems continuously monitor carbon dioxide concentration across industrial, commercial, and safety-critical environments — triggering alarms, activating ventilation, and logging data when CO2 levels exceed defined threshold values. These systems use non-dispersive infrared measurement to deliver accurate, drift-resistant detection across concentration ranges from indoor air quality ppm levels to high-concentration industrial process monitoring.

The NDIR measurement cell directs IR light from a broadband source through the sampled gas. A bandpass filter isolates CO2’s 4.26 µm absorption wavelength at the detector. CO2 molecules absorb IR energy at this wavelength and reduce transmitted intensity. The system converts this reduction to a concentration reading in ppm or volume percent. Furthermore, dual-wavelength designs add a reference channel at a non-absorbing wavelength. This cancels source drift, temperature changes, and cell contamination — maintaining calibration stability across multi-year service intervals.

Multi-point detection systems place sensors at several locations across a facility and connect them to a central controller — identifying which zone exceeds threshold values and displaying zone-by-zone concentration data on a panel display or SCADA interface. Portable handheld CO2 gas detectors cover inspection surveys, confined space pre-entry checks, and compliance audits from a single battery-powered instrument with data logging and Bluetooth connectivity.

These systems serve Pakistan’s commercial building HVAC management operations in Karachi and Lahore, cold storage and beverage production facilities, hospital operating theatre and ICU ventilation control systems, brewery and fermentation plant safety monitoring programs, and university laboratory CO2 safety compliance programs requiring continuous, auditable CO2 detection across fixed and portable monitoring applications.

Tactical Supply Pakistan supplies NDIR CO2 gas detection systems for industrial safety, HVAC control, confined space monitoring, and environmental compliance procurement across Pakistan.