In industrial environments such as chemical plants, mining operations, and waste treatment facilities, the presence of hydrogen cyanide (HCN) poses a severe threat to human life and ecological environment. Even at low concentrations, HCN is highly toxic, so real-time and reliable monitoring is a necessary condition for safety protocols and regulatory compliance.

Our RS485 Cyanide Gas (HCN) Sensor (Integrated Temperature and Humidity Monitoring) is an IoT wired sensor developed based on RS485 communication technology, specifically designed to address these critical challenges. This device integrates a high-precision electrochemical hydrogen cyanide gas sensor with temperature and humidity sensors, providing a comprehensive multi-parameter monitoring solution for industrial and environmental applications.

Core Advantages of RS485 HCN Sensor

1. High-Precision Electrochemical Detection

The core of the sensor is its electrochemical detection principle, which ensures excellent accuracy and stability when measuring HCN concentrations. This technology is known for its high sensitivity to low-concentration toxic gases, making it an ideal choice for early warning systems.

2. Integrated Temperature and Humidity Monitoring

Environmental conditions such as temperature and humidity directly affect the performance of gas sensors and change the diffusion mode of HCN. By monitoring gas concentration and environmental parameters simultaneously, our sensor can provide a more complete environmental profile, helping to make more informed decisions.

3. Stable and Reliable RS485 Communication

RS485 is a mature industrial communication standard that supports long-distance data transmission (up to 1200 meters) and has excellent anti-electromagnetic interference capabilities. This makes the sensor suitable for large-scale industrial facilities and ensures the reliability of data transmission.

4. Low Power Consumption Design

The sensor adopts 5–28VDC wide voltage power supply, optimized for continuous operation, achieving high energy efficiency while ensuring performance. This feature is particularly beneficial for remote or battery-powered deployment scenarios.

5. Flexible LoRaWAN Support

For applications requiring wireless connectivity, the sensor supports the LoRaWAN protocol, adopting OTAA Class A/C mode (Class C by default), which can be seamlessly integrated into IoT networks to achieve remote monitoring and data analysis.

6. Global Certifications and Compliance

The sensor has multiple international certifications such as CE, ROHS, FCC, ISO, and 11 patents, complying with global safety, performance, and environmental protection standards, and can be safely deployed in global markets.

Application Scenarios: The Value of RS485 HCN Sensor

Environmental Monitoring: Real-time tracking of HCN content in air and water to ensure compliance with environmental protection regulations and protect ecosystems.

Industrial Emission Monitoring: Monitoring emissions from chemical plants, refineries, and manufacturing facilities to meet emission standards and reduce environmental impact.

Chemical Enterprises and Laboratories: Providing early warning of HCN leaks to protect the safety of staff and avoid catastrophic accidents.

Mining and Waste Management: Detecting HCN in mining operations and waste treatment facilities, where the gas often exists as a by-product of certain processes.

Technical Specifications

Model: LW317D-HCN(RS485)

Detection Target: Hydrogen Cyanide (HCN)

Power Supply Voltage: 5–28VDC

Communication Method: RS485 (Wired), LoRaWAN (OTAA Class A/C)

Certifications: CE, ROHS, FCC, ISO and 11 patents

Customization Services: OEM, ODM supported

Warranty Period: 1 Year

Why Choose Our RS485 HCN Sensor?

In the gas detection solution market, our sensor stands out for its reliability, versatility, and compliance. Whether you need to protect workers in chemical plants, monitor emissions from refineries, or ensure environmental compliance of waste treatment facilities, this sensor can provide key data to help you act decisively.

With customizable OEM/ODM options and a 1-year warranty, we work closely with our partners to provide customized solutions that meet specific operational needs. Our commitment to quality and innovation ensures that the sensor operates stably when it matters most.

Towards a Safer Industrial Future

Do not put employee safety and environmental integrity at risk. Invest in a trustworthy monitoring solution.

To learn more about how the RS485 Cyanide Gas (HCN) Sensor can improve industrial safety and environmental monitoring levels, inquire now and communicate with our expert team. We will help you build a safer and more compliant future.

At ZONEWU, we believe that technology should empower safety and sustainable development. Our RS485 HCN Sensor is a reflection of this philosophy, providing the precision, reliability, and connectivity needed to meet the most demanding industrial challenges.