LoRa Hydrogen Cyanide (HCN) Sensor

Environmental LoRaWAN Hydrogen Cyanide (HCN) Sensor

xiamen ZONEWU The LoRaWAN Hydrogen Cyanide (HCN) sensor is a new type of wireless gas sensor based on LoRa^TM spread spectrum modulation technology.

xiamen ZoneWu LoRaWAN Gas Sensor HCN Sensor Features:

This is a wireless gas sensor based on LoRa spread spectrum technology, which can complete data acquisition, monitoring and transmission with one button, and is specifically designed to monitor the concentration of cyanide hydrogen, temperature and humidity in the environment.

Built-in hydrogen cyanide sensor and temperature and humidity sensor, using three-electrode electrochemical technology and high-performance chip to measure gas, the temperature sensor can also automatically "calibrate" the temperature effect, making the data more accurate.

High sensitivity (can catch even small concentration changes), high resolution (precise to the details), and strong stability (resistant to interference and doesn't "drop the chain").

It supports the standard LoRaWAN protocol and can transmit data wirelessly over a long distance using LoRa spread spectrum technology, suitable for large-scale monitoring.

It can set the "safety line" in advance according to the on-site situation. Once the concentration of cyanide exceeds the standard or the data is abnormal, it will immediately "alert" and remind you.

It can be used in chemical plants, electroplating plants, fire scenes, mines, and other places where there may be a risk of cyanide hydrogen leakage, and it can protect safety in real time. 

Technical Parameters

Product Applications

1. Long-distance wireless transmission: LoRaWAN technology can transmit data wirelessly to several kilometers away without pulling wires, making it convenient to monitor hydrogen cyanide in large areas such as chemical parks and mines.

2. High precision detection: It is particularly sensitive to hydrogen cyanide, can measure the concentration quickly and accurately, and can get the data in real time. The regularity of numerical changes is stable.

3. Strong anti-interference ability: The electrodes made with special technology are not afraid of other gases "trouble", and can work steadily in complex industrial environments, regardless of electromagnetic interference or temperature and humidity changes. 

Detailed Images

Common knowledge of  HCN 

What is hydrogen cyanide (HCN)? What are the characteristics

Hydrogen cyanide is a colorless, highly toxic gas (some people cannot detect the smell due to genetic differences) with a bitter almond smell, is easily volatile, and dissolves in water to form hydrogen cyanide. It is a typical "asphyxiating poison" that blocks the oxygen supply of human tissues by inhibiting cytochrome oxidase, causing internal asphyxiation, and can be instantly fatal at high concentrations.

What is the safe concentration limit of hydrogen cyanide in the air

Occupational exposure limit value (PC-TWA, 8 hours):

• Chinese standard: 0.3 mg/ m³ (about 0.25 pppm);

• United States OSHA standard: 5 mg/m¹³ (approximately 4.2 ppm, applies only to specific operations that produce cyanide).

Lethal Concentration:

• When the concentration in the air reaches 300 mg/ m³ (about 250 ppm), it can cause death within 5 minutes;

• The lethal dose of oral hydrogen cyanide (liquid) is about 50 mg (equivalent to a few drops).

What are the main sources of hydrogen cyanide? Why is it easily overlooked

Industrial Scenarios:

• Electroplating (cyanide plating solution), metallurgy (extraction of gold and silver), synthetic fibers (such as nylon production);

• Burning of plastics and rubber (common in fires, e.g., burning of polyurethane releases HCN).

Concealability:

• When the concentration is low, the smell is weak (some people cannot detect it), and the symptoms are similar to the initial stage of poisoning (headache, nausea), which can easily be mistaken for "cold" or "fatigue";

• Smoke from the fire covers the smell of HCN, causing escapees to be unable to protect themselves in time.

What interference factors should be paid attention to when detecting the concentration of cyanide hydrogen

Other gas interference:

• Hydrogen sulfide (H₂S) and ammonia (NH₃) may react with the sensor, leading to false alarms;

• Carbon dioxide (CO₂) and water vapor may affect the electrolyte performance of electrochemical sensors.

Temperature and humidity:

• The evaporation of HCN slows down in low-temperature environments, which may lead to lower detection values;

• High humidity may dilute gas concentration or corrode sensor electrodes.

• Response time: Some sensors have a longer response time to HCN (> 60 seconds), so be aware of the delay risk. 

Application Scenarios

Industrial production

Waste gas emission monitoring: Conduct real-time monitoring of industrial waste gas emissions to ensure that waste gases meet emission standards and reduce pollution to the environment.

 

Environmental inspection

Air quality monitoring helps people understand air quality and protect the environment and health by detecting harmful gases such as sulfur dioxide.

Safety protection

In coal mines and tunnels, gas sensors detect toxic and harmful gases such as methane and warn against accidents.

 

A:Yes,we can provide you with OEM services and design housings and logos.

3.DO you offer free samples?

A:Sorry,we don't offer free samples. After ordering in bulk, we will deduct the sample fee from the second order.

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