The first choice in a limited space is a four-in-one gas detector. The following are its advantages：

(Click on the picture to jump to the details page)

First , it is portable. It is slightly larger than a mobile phone and can be hung on the waist. It is very portable.

Second ,it is a longer service life. The main component of the gas detector is the sensor. The sensor will only be lost when it is turned on. Therefore, you should choose a handheld four-in-one gas detector with lithium battery. If it is not turned on all the time, the lifespan will be longer than that of a fixed detector.

Third, it is sensitivity, which is why the prices of four-in-one devices on the market vary. The key to judging whether it is good or bad depends on the quality of the sensor, and there is no sensor on the market that is recognized as the best, so various shoddy products abound.

(Click on the picture to jump to the details page)

Fourth, some small designs, such as gas customization, lighting, alarm methods, hanging buckles, explosion-proof body, and warranty.