Air Quality Sensor with CO2 TVOC
Air Particulate Meter 
Carbon Dioxide Sensor NDIR
CO and O3 ControllerThe Evolution of Duct Environment Sensing
In modern HVAC systems, monitoring air quality directly within the ductwork is critical for building performance. TVOC (Total Volatile Organic Compounds) and PM2.5 sensors integrated into duct environments provide real-time visibility into pollutants that circulate through building ventilation. As urbanization grows, the focus on "Healthy Buildings" has transformed these sensors from optional add-ons to essential components of Building Management Systems (BMS).
Precision Sensing
Our sensors utilize advanced NDIR and laser scattering technologies for unmatched accuracy.
IoT Integration
Seamless connectivity with global BMS platforms for data-driven facility management.
Industrial Durability
Engineered for high-flow, high-pressure duct environments with long-term stability.
Compliance
Fully aligned with WELL and LEED building standards for occupant health.
Deep Analysis: The Future of Indoor Air Quality
The industrial landscape is shifting toward predictive maintenance. By analyzing historical trends of TVOC and PM2.5 levels, facility managers can optimize filter replacement schedules and energy consumption. Tongdy’s commitment to R&D ensures that our monitoring solutions not only detect pollutants but also help define the next generation of smart, energy-efficient architecture.
Small and compact CO2 Sensor Module
Professional In-Duct Air Quality Monitor
Outdoor Air Quality Monitor with Solar Power Supply
Floor heating thermostat with standard programmable