Hydrogen Cyanide (HCN) Gas Sensor, 0-50ppm

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$149.79

Selling high quality hydrogen cyanide (HCN) gas sensor. This HCN gas sensor uses an electrochemical three-electrode system to detect hydrogen cyanide in the 0-50 ppm range. The gas sensor has 0.1 ppm resolution, ±5% precision, ≤120s response time, and works in 90-110 kPa pressure. Used in environmental quality testing, industrial robots, chemical plants, coal mines, instrumentation.

SKU: ATO-GS-HCN

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Delivery date: 6-12 days

Overview

High-quality HCN gas sensor detects 0-50 ppm hydrogen cyanide with 0.1 ppm resolution, ±5% precision, and ≤120s response time. Works under 90-110 kPa pressure. Ideal for environmental testing, industrial robots, chemical plants, coal mines, and instrumentation.

Specification

Model	ATO-S4-HCN
Detection Principle	Electrochemical Three-Electrode
Detected Gas	Hydrogen Cyanide (HCN)
Detection Range	0~50 ppm
Maximum Load Concentration	100 ppm
Sensitivity	100 ±30 nA/ppm
Zero Drift	-1~1 ppm
Resolution	0.1 ppm
Precision	±5%FS
Response Time	≤120s
Operating Pressure	90 to 110 kPa
Temperature Range	-30°C to 50°C
Humidity Range	15%RH to 90%RH (Non-condensing)
Repeatability	< ±2% Signal/Month
Long-term Stability	< 2% Signal/Month
Linearity	Linear up to 100 ppm
Service Life	2 years

Dimension (Unit: mm)

Electrochemical gas sensors size

Crossover Interference

The hydrogen cyanide (HCN) gas sensor also responds to gases other than the target gas. For reference, the response characteristics of the sensor to several common interfering gases are listed in the table below. The data in the table are typical responses of interfering gases at a given concentration.

Interfering Gas	Gas Concentration Used (ppm)	Displayed Value (ppm/HCN)
CO	100	0
SO₂	23	8
H₂S	26	52
Cl₂	16.3	0
NO	18	0
NO₂	23	-1

Basic Test Circuit

Gas sensor basic test circuit

Application

Hydrogen cyanide (HCN) gas sensor can be used in environmental quality testing, industrial robots, chemical plants, coal mines, instrumentation, underground pipelines, fruit and vegetable gardens, greenhouses and so on.

HCN gas semsor application

Tips: What makes hydrogen cyanide (HCN) gas dangerous?

Hydrogen cyanide (HCN) is an extremely toxic and flammable gas that interferes with the body's ability to use oxygen, leading to respiratory failure, dizziness, unconsciousness, and even death at high concentrations. It is widely used in chemical manufacturing, mining, and fumigation processes, making real-time monitoring essential for safety. Even low-level exposure can cause irritation of the eyes, skin, and respiratory system, which is why accurate and reliable HCN detection is critical in workplaces where cyanide compounds are handled.

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