RESET® recognizes Tongdy PGX Series as an Accredited Air Monitor

Tongdy PGX series Indoor Air Quality Monitor has officially joined the growing list of over 60 RESET Air Accredited Monitors worldwide. As Tongdy’s third device to receive this certification, the PGX series has successfully completed RESET’s three-week testing and data analysis process, meeting all standard requirements.
The PGX Series measures multiple indoor environmental parameters, including PM1, PM2.5, PM10, carbon monoxide (CO), carbon dioxide (CO₂), total volatile organic compounds (TVOC), formaldehyde (HCHO), temperature, relative humidity, illuminance, noise, occupancy, and atmospheric pressure. Its modular sensor design, such as interchangeable PM, CO, and HCHO modules, allows for quick replacement at the end of sensor life, reducing maintenance costs.
Equipped with a high-resolution color display, the PGX Series presents monitoring data and trend curves in real time. Measurement values are visualized through dynamic color changes. The monitors also support AQI and primary pollutant alerts, helping users quickly assess indoor air quality.
The PGX Series supports multiple communication methods, including Wi-Fi, Ethernet, RS485, 4G, and LoRaWAN, as well as protocols such as MQTT, Modbus RTU, Modbus TCP, BACnet MS/TP, and BACnet IP. The system can also be expanded to third-party platforms like Tuya and Qlear, making it easy to connect with BMS and IoT networks. Users can collect and analyze data trends via the cloud, manage devices, perform remote calibration, and conduct diagnostics, providing support for ongoing air quality tracking and management.
Additional features include local data storage for 3–12 months of historical records, Bluetooth data downloads, remote calibration, firmware upgrades, and deployment options for either local or cloud-based data acquisition. All data handling complies with international standards for security and privacy.
With over 15 years of expertise in air quality monitoring and data analytics, Tongdy has earned experience in both research and field applications. Its multi-parameter indoor and outdoor monitoring solutions are widely used worldwide, from green building certification projects and public facilities to residences, wellness hotels, and government initiatives. Tongdy’s air quality solutions are deployed across key markets including Beijing, Shanghai, Shenzhen, Hong Kong, the United States, Singapore, and the United Kingdom, and are exported to more than 30 countries and regions globally.
"Earning RESET Air Certification underscores the PGX series’ commercial-grade performance, setting it apart from typical consumer-grade or household monitors. It reflects Tongdy’s ongoing alignment with leading air quality monitoring standards and its proven ability to earn sustained recognition from both the market and end users. By continuously developing commercial-grade monitors that deliver high quality environmental data, Tongdy empowers client organizations to build healthier, more energy efficient, and sustainable systems. Achieving RESET Certification further reinforces Tongdy’s commitment to innovation, responsiveness to evolving customer needs, and dedication to delivering superior products and services."
- Tongdy
Click this link, Tongdy Indoor Environment Monitor PGX-119C-M/PGX-129C-M/PGX-139C-M, to learn more about the monitor.
To view the list of all RESET accredited monitors, go to the RESET Directory for Monitors.
If you are interested in getting your IAQ monitor accredited, check out the RESET Air Accredited Monitor Process.
About RESET®
RESET® is an international performance data standard and certification program, created and managed by GIGA, that offers a pathway towards decarbonization by developing actionable and measurable strategies towards regenerative sustainability and health for the built environment. RESET takes a quantitative and holistic approach to embodied and operational data by combining the development of databases, data collection, continuous monitoring, and cloud software to automate reporting and analytics, which then generates opportunities for iterative improvement and optimizations.
The RESET Embodied Standards include Embodied Carbon, Circularity, and Health, while the RESET Operational Standards include Air, Energy, Water, and Waste.
For more information about RESET, please visit: https://www.reset.build/