YJJ ZE03-SO2 Electrochemical SO2 Gas Sensor Module 0-100ppm Environmental Air Monitoring

Product Description:

YJJ ZE03-SO2 Electrochemical SO2 Gas Sensor Module 0-100ppm for Environmental Air Monitoring

Features:

I. Basic Information
Brand: Winsen
Type: Integrated electrochemical gas detection module (includes a built-in three-electrode SO2 sensor + signal processing + temperature compensation circuit)
Detected Gas: Sulfur Dioxide (SO2)
Dimensions: Φ23.3 × 31.2 mm
Power Supply: DC5V. The entire unit has been calibrated and no additional amplification circuit is required
II. Core Electrical and Detection Parameters (25°C) Table
Project Parameter Value
Measurement range 0 - 100 ppm (standard range)
Resolution 0.1 ppm
Detection lower limit ≤ 0.5 ppm
T90 response time ≤ 30 s
Linearity Linear output, built-in temperature compensation
Power supply voltage DC 5.0V ± 0.1V
Operating current < 5 mA, low power consumption
Signal output 1. UART serial port (TTL 3V, 9600 baud)
2. Analog voltage output 0.4 - 2.0V
Operating temperature -20℃ ~ +50℃
Relative humidity 15% - 90% RH, no condensation water vapor
Expected service life ≥ 24 months (normal atmospheric environment)
Zero drift Long-term drift is small, suitable for continuous online monitoring
III. Product features
Integrated module: Sensor + operational amplifier + AD + temperature compensation integrated, direct reading of concentration upon power-on, simplifying hardware development;
Dual output: Digital serial port + analog voltage, compatible with single-chip microcontrollers, PLC secondary development;
Three-electrode electrochemical structure, suppressing cross-interference of NOx, VOC, etc. gases;
Drought-resistant, suitable for high-humidity working conditions of flue gas, exhaust gas;
Compact in size, suitable for OEM integration in small-sized detection instruments.
IV. Usage description
1. Environmental air monitoring (main scenario)
Micro air monitoring station, grid-based air monitoring equipment, monitoring SO2 pollution concentration in the air;
Urban factory non-organized emissions, park air quality online monitoring.
2. Industrial flue gas and environmental protection equipment
Simple detection of SO2 in post-desulfurization tail gas of boilers, kilns, smelting plants;
Monitoring of sulfur dioxide concentration at the outlet of exhaust gas treatment equipment;
Core sensing element of portable flue gas detector.
3. Industrial safety detection
SO2 leakage alarm in smelting, coking, sulfuric acid workshops;
Inspecting toxic gases in pipelines, storage tanks with toxic gas probes;
Detection of acidic flue gas after blasting in mines.
4. Instrument OEM support
Portable single/compound gas detector;
Fixed online SO2 transmitter;
Flue gas sampling analyzer, automatic exhaust gas sample monitoring module.

Specifications: