Portable four-in-one gas detector
First, the selection is made according to the type of gas to be detected. The key component of gas detector is gas sensor, and different gas sensors can detect different kinds of gases. For example, the combustion gas detector can only detect combustible gas, not VOC gas.
Second, choose according to the required function. At present, gas detection instruments have many additional functions, such as alarm, waterproof, dustproof, explosion-proof, reaction time, preheating time and so on. , should be selected according to actual needs.
Third, determine whether a portable gas detector or a fixed gas detector is needed. Portable gas detector, also called hand-held gas detector, can be carried around and detect the surrounding gas environment anytime and anywhere. Fixed gas detector refers to an instrument that is fixed in a certain area and used to monitor the gas environment in this area in real time.
Stationary gas detector
Fourth, check the production qualification. At present, due to the rapid development of gas detector market and uneven product quality, inferior products often lead to personnel and property losses at critical moments. I suggest you buy gas detectors through regular channels, such as JD.COM and Tmall.
Fifth, choose a reliable brand. Due to the huge price difference caused by the different quality of the key components of the gas detector, many products assembled by small brands themselves are not up to standard, which is very risky to use. It is recommended that you buy products produced by regular manufacturers such as Bao Shi 'an Electronics and Kailu Electronics.
Finally, I would like to remind you that the gas detector can eliminate most potential safety hazards, but it cannot completely guarantee the construction safety. Perfect safety precaution mechanism should be established during construction.