A gas is a deformable, movable fluid that has no shape and volume. So we need to use a gas detector to detect, the gas is a fluid like a liquid, it can be active and deformable. Unlike liquids, gases can be tightened. If there is no constraint, the gas can diffuse and its volume is not constrained.

First, the detection principle of flammable and toxic gases

Combustible gas means that it can be uniformly mixed with air (or oxygen) within a certain concentration range to form a premixed gas. When a fire source is exploding, a large amount of energy is released during the incineration. So the principle of detecting this gas is the catalytic incineration sensor.

Toxic gases, as the name implies, are gases that cause damage to the human body and can cause poisoning. The principle of toxic gas detection is a dedicated electrochemical sensor, which measures the concentration-volume ratio, and the response is faster and more active.At this time,industrial toxic gas detector may help a lot.

Second, the selection of gas selection alarm

The sensors selected on various types of gas alarms are very sophisticated. Industrial alarms are mostly used for catalytic incineration sensors and electrochemical sensors because of the quantitative measurement required. Industrial gas alarms can be classified into gas alarms and gas detectors according to their application methods. Considering the price factor, electrochemical sensors are generally only used in the case of quantitative measurement of toxic gases. Regarding the occasion of measuring the explosion, the catalytic incineration sensor is generally used because the requirements are not high.