IoT product and technology solution provider

ZONEWU High Sensitivity LoRaWAN Sulfur Dioxide (SO2) Detector

LoRaWAN sulfur dioxide sensor is an IoT wireless sensor developed based on LoRa wireless technology, with built-in SO2 sensor and temperature and humidity sensor. It uses electrochemical principles to monitor the sulfur dioxide concentration, temperature value, and humidity value in the environment in real time.

It has the characteristics of high detection accuracy, stable performance, and low power consumption. Widely used in environmental monitoring, industrial emission monitoring, chemical plants and other fields.


  • Model No.:

    LW306D-SO2
  • Use:

    Detect the content of gas SO2
  • Power Supply:

    5~28VDC
  • LoRaWAN Mode:

    OTAA Class A/C (Default: Class C)
  • Certificates:

    CE,ROHS,FCC,ISO and 11 patents certifications
  • Customized Support:

    OEM, ODM
  • Warranty:

    1 Year
  • Product Detail

ZONEWU High Sensitivity LoRaWAN Sulfur Dioxide (SO2)  Detector



Introducing our LoRaWAN Gas Hydrogen Sulfide & Sulfur Dioxide (SO₂) Sensor — a state-of-the-art IoT wireless sensing solution engineered on the robust foundation of LoRa technology.


Integrated with dual-core sensing modules for hydrogen sulfide and sulfur dioxide detection, plus an auxiliary temperature and humidity sensor, this device leverages advanced electrochemical principles to deliver real-time, high-precision monitoring of multi-gas concentrations and ambient climate parameters. 


What truly sets it apart are its three core strengths:


Precise measurement: Calibrated with professional-grade algorithms to ensure minimal margin of error, capturing even subtle fluctuations in gas levels for reliable data insights.


Stable performance: Built with industrial-grade components, it maintains consistent operation in harsh environments such as chemical plants and industrial emission sites, free from signal drift or data interruption.


Low energy consumption: Optimized power management design supports long-lasting wireless transmission without frequent battery replacement, drastically reducing maintenance costs.


Thanks to these superior features, our LoRaWAN H₂S & SO₂ Sensor is perfectly suited for long-term, continuous deployment across a wide range of scenarios, including environmental quality monitoring, industrial pollution control, chemical plant safety supervision, and urban air quality management.

 



SO2 Sensor Specification:



Power Supply

5~28VDC

Power Interface

DC 5.5mm × 2.1mm

(positive inside and negative outside)

Weight

120g

Operating Emperature

-20℃~50℃

Humidity: 15%~ 90% RH without condensation

NOTE: It is not recommended to stay in a high humidity (95%) environment for more than half a month

Measuring Principle

Electrochemical Principle

Measuring Range

SO2: 0-20 ppm

Resolution Ratio

SO2: 0.1 ppm

Temp.and Humi. Sensor

 

Temp Range:-40~+80 ℃

Accuracy:±0.3 ℃

Humi Range:0~99.9 %RH

Accuracy:±2 %RH

Sensor Lifespan

< 2 years

Frequency

CN470/IN865/EU868/RU864/US915/AU915/

KR920/AS923-1&2&3&4

Mode

OTAA  Class A/C(Default: Class C)

Data Collection Cycle

10s(Default)

Reporting cycle

5 min(Default reporting cycle)

Report after preheating for 3 minutes when powered on

Communication Protocol

LoRaWAN,LoRa TDMA Networking

Equipment information

(Reference)

AppEUI:0000000000000001

DevEUI:aaaa202404150001

AppKey:00001111222233334444555566667777

MAC Version:LoRaWAN 1.0.3


Packaging:


Single gross weight: 0.600 KG

Single package size: 23X20X5 cm





Application: 


The High precision SO2 sensor also widely used for gas monitoring of Chemical production, Ward monitoring, Vegetable greenhouse, Livestock and poultry farms, Tunnel monitoring, Cold chain logistics vehicle, Cold storage monitoring, Biosafety laboratory.


applications of NO2 sensor



Certifications:



  • With over a decade of dedicated expertise in the sensing industry, we stand as one of China’s leading gas sensor manufacturers and exporters. Our unwavering commitment to quality has earned us a stellar reputation across global markets.
  • Our flagship SO₂ sensor series, including the advanced LoRaWAN Gas Hydrogen Sulfide & Sulfur Dioxide Sensor, boasts full compliance with CE and RoHS certifications — a testament to our adherence to stringent international safety and environmental standards. Engineered with precision measurement, stable performance and low energy consumption at its core, our sensors are built to deliver reliable, long-term operation for environmental monitoring, industrial emission control, chemical plant supervision and beyond.


Production Process:



factory of gas sensor manufacturer



Why choose us:


1. Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
2. Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
3. Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
4. Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate. 
5. Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.

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