Electrochemical hydrogen sulfide sensor

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Electrochemical hydrogen sulfide sensor

First, before understanding hydrogen sulfide alarms, we first understand hydrogen sulfide gas. Hydrogen sulfide is a flammable, colorless, acidic gas under standard conditions that emits a rotten egg smell at low concentrations. If the concentration is extremely low, it will have a sulfur smell and is highly toxic. It can form an explosive mixture when mixed with air. It can cause combustion and explosion when exposed to open flames or high heat. If hydrogen sulfide exists in the living environment, it will pose a huge threat to human health. It may even cause life safety, or it may cause explosion and cause blasting accident.

Hydrogen sulfide is harmful to human health. Hydrogen sulfide is a strong neurotoxin and has a strong irritating effect on mucous membranes. It is soluble in water. At 0°C, 1 mole of water can dissolve about 2.6 moles of hydrogen sulfide. Hydrogen sulfide is an acute poison. Inhaling a small amount of high-concentration hydrogen sulfide can be fatal within a short period of time. Low concentrations of hydrogen sulfide have effects on the eyes, respiratory system and central nervous system.

Electrochemical hydrogen sulfide sensor in hydrogen sulfide alarm:

The electrochemical hydrogen sulfide sensor is the core component of the hydrogen sulfide alarm. The electrochemical gas sensor uses the principle of electrochemistry to convert the content of hydrogen sulfide gas into an electrical signal. It has the characteristics of high sensitivity, good selectivity, simple structure and relatively short service life. The electrochemical hydrogen sulfide sensor should be used within the validity period of the instrument sensor, which is generally valid for two years.

Electrochemical H2S Hydrogen Sulfide Gas Sensor Module FS01701 - Fosensor (hnfosensor.com)