Introduction: Why Does IoT Need High-Precision Air Environment Sensors?
The Internet of Things (IoT) is rapidly transforming our world, from smart cities and industrial automation to intelligent buildings and environmental monitoring. At the heart of these systems lies real-time sensing and data collection. Air quality monitoring, crucial for both human health and sustainability, has become one of the core application areas of IoT.
Monitoring air quality relies on multiple indicators, such as PM2.5, PM10, carbon dioxide (CO2), total volatile organic compounds (TVOCs), formaldehyde (HCHO), carbon monoxide (CO), and ozone (O3). Environmental monitoring often focuses on additional parameters, such as illumination and noise. Tongdy’s IoT-compatible multi-parameter environmental monitors deliver high precision, versatile sensor configurations, network connectivity, and data security—providing reliable data support for IoT systems, enabling smart decision-making and eco-friendly responses.
About Tongdy: Innovator in Environmental Monitoring
Company Background
Beijing Tongdy Sensing Technology Corp. has specialized in air quality monitoring solutions for over 20 years. With more than 50 product models exported to 38 countries and over 300 projects worldwide, Tongdy has established itself as a global leader and key player in environmental monitoring.
R&D Strength
Tongdy has strong research and development capabilities, covering diverse sensor technologies, calibration algorithms, compensation models, and control logic. Its products are certified by RESET, CE, FCC, REACH, and ROHS, while also complying with WELL and LEED green building standards. Tongdy’s devices are widely adopted in sustainable building and smart commercial projects.

What Makes an IoT-Compatible Air Environmental Sensor?
Key features include:
Continuous real-time monitoring of pollutants 24/7.
Network transmission support for Wi-Fi, LoRaWAN, RJ45, 4G, NB-IoT, and fieldbus connections.
System integration capability, ensuring seamless connection with cloud platforms, BMS, and other IoT systems.
Single vs. Multi-Parameter Sensing
Unlike traditional single-parameter sensors, multi-parameter devices integrate multiple modules into one unit, monitoring a wider range of environmental indicators. It makes them better suited for holistic smart system applications.
Advantages of Tongdy Multi-Parameter Air Environmental Sensors
1、Key Indicators Monitored
Particulate matter: PM2.5, PM10, PM1.0
Gas pollutants: CO2, TVOCs, CO, O3, HCHO
Comfort metrics: temperature, humidity, AQI, and dominant pollutant detection
Other metrics: light levels and noise
2、High Precision & Long-Term Stability
Tongdy sensors are built to industrial standards, with rigorous calibration and proprietary compensation algorithms. This ensures stable, long-term performance with accuracy well beyond consumer-grade devices, making them ideal for professional environmental monitoring and control.
3、Networking Capabilities
Wireless: Wi-Fi, NB-IoT, LoRaWAN
Wired: RJ45 Ethernet
Cellular: 4G SIM IoT data platform
Fieldbus: RS-485
Supported protocols include MQTT, Modbus RTU/TCP, BACnet MS/TP & IP, and Tuya. Cloud integration enables remote monitoring, analytics, and historical data queries, with remote service options for enhanced management.
4、Application Scenarios
Smart buildings & green infrastructure: Offices, malls, libraries, subways, airports, schools, hospitals—real-time monitoring for public health and energy efficiency.
HVAC & indoor air quality control: Integration with purifiers, HVAC systems, and fresh-air units for automated air adjustments.
Outdoor monitoring & industrial safety: Construction sites, workshops, and mines for toxic gas detection, ensuring worker safety and compliance.
Tongdy Air Environment Sensors Main Product Lines
1、Indoor monitoring devices -suited for offices, schools, and hospitals.
2、Duct-type monitors -built with probe chambers and fans for stable airflow and reliable data, ideal for HVAC ducts.
3、Outdoor monitors-dustproof, waterproof, and interference-resistant, designed for harsh industrial and public environments.
4、Custom enterprise solutions-tailored IoT integration for specific business needs.
FAQs
Q1: What pollutants can Tongdy sensor monitors detect?
A: PM2.5, PM10, CO2, VOCs, HCHO, CO, O3, and more.
Q2: Do Tongdy sensor monitors support IoT integration?
A: Yes. They support Modbus, BACnet, MQTT, Tuya, and multiple connectivity options (RJ45, Wi-Fi, LoRaWAN, RS485, 4G).
Q3: Are Tongdy sensor monitors for indoor or outdoor use?
A: Tongdy offers models for indoor, outdoor, and HVAC duct monitoring.
Q4: Can Tongdy sensor monitors be used for green buildings?
A: Yes. They integrate with purifiers, HVAC, and BMS, and support sustainable building certifications.
Q5: What is Tongdy sensor monitor lifespan?
A: Generally 3-5 years, with CO2and temperature or humidity sensors lasting over 10 years.
Tongdy’s Value in IoT Air Environment Monitoring
Tongdy’s IoT-compatible multi-parameter air quality sensors combine high accuracy, multi-pollutant monitoring, IoT readiness, and international certifications. As a cornerstone of smart cities, sustainable buildings, and industrial safety, Tongdy drives innovation toward a healthier, safer, and smarter future.
Post time: Oct-15-2025