The gas detector is an instrument for detecting the concentration of gas leakage. Including: portable gas detector, handheld gas detector, fixed gas detector, online gas detector, etc.

The gas sensor is mainly used to detect the type of gas in the environment, and the gas sensor is used to detect the composition and content of the gas.

It is generally considered that the definition of a gas sensor is based on the detection target.

In other words, any sensor used to detect gas composition and concentration, whether it is a physical method or a chemical method, it is called a gas sensor.

For example, a sensor that detects gas flow is not regarded as a gas sensor.

However, thermal conductivity gas analyzers are important gas sensors, although they sometimes use generally consistent detection principles.

Gas detector is an instrument for detecting the concentration of gas leakage, mainly refers to portable/handheld gas detector.

As early as the 1970 s, gas sensors have become the main system in the sensor field and belong to a branch of chemical sensors.

According to the way of use, it can be divided into desktop gas detector and handheld gas detector.

According to the amount of gas that can be detected, it can be divided into a single gas detector and multiple gas detectors.

According to the principle of gas sensors, it can be divided into infrared gas detectors, thermomagnetic gas detectors, electrochemical gas detectors, semiconductor gas detectors and ultraviolet gas detectors.