4G Transmission Online Air Quality Monitoring System with PM₂.₅ and TVOC Monitoring for Ambient Air Quality

The Air Quality Online Monitoring System primarily consists of a particulate matter measurement device, gas monitoring modules, and a data acquisition and wireless transmission unit. Combined with monitoring platform software, it enables functions such as air quality publishing, comprehensive data analysis, pollution exceedance alarms, urban environment photography, and video surveillance.

• High Integration: Can simultaneously integrate sensors for particulate matter, SO₂, CO, NO₂, O₃, TVOC, and meteorological five-parameter sensors
• Optical Sizing: Utilizes optical particle sizing technology for simultaneous monitoring of PM₁.₀, PM₂.₅, PM₁₀, and TSP
• Constant Flow Control: Incorporates flow feedback for constant flow control, ensuring sampling volume stability and enhancing accuracy
• Built-in Protection: Features sheath gas protection and gas path protection functions
• Professional Design: Structural design by professional design institutes for easy installation
• Tiered Air Paths: Features dual-pump air paths with main channel for particulates and auxiliary channel for gas modules
• Data Stability: Equipped with temperature and humidity sensing, gas cross-interference algorithms, zero drift compensation, and calibration across measurement ranges
• Dynamic Dehumidification: Can be equipped with a dynamic heating dehumidification sampling system to avoid data distortion in humid environments
• Data Transmission: 4G, RS232/RS485
• Data Export: Features USB port and/or SD card slot, supporting local data export (includes local storage with capacity >530,000 records)
• Weather Resistance: Protection against rain, snow, and lightning
• Traceability: Traceable to NIST (National Institute of Standards and Technology)
• Resume Transmission: Features power failure protection and data resume/re-transmission upon network restoration
• Information & QC: Includes device information management, data management, and data quality control functions
• Local Display: Equipped with LCD display and local debugging functions
• Multi-stage Filtration: Incorporates a two-stage or higher filtration system to prevent foreign matter from affecting sensor accuracy and precision
• Service Life: Main unit >10 years; Particulate Matter Sensor >5 years; Gas Sensors >2 years
• Calibration/Zeroing: Supports automatic/manual zero calibration and calibration functions