The 4-gas monitor typically detects carbon monoxide (CO), oxygen (O2), hydrogen sulfide (H2S) and combustibles (EX). Using audible, visual, and vibration alarms, 4 gas monitors are used to warn the user of any unsafe environments.
These meters are an asset to people working in environments where there could be a possibility of a dangerous atmosphere. This includes atmospheres that lack at least 19.5% oxygen, atmospheres that contain more than 23.5% oxygen, and atmospheres that may contain toxic gases such as carbon monoxide and hydrogen sulfide.
These instruments are very useful, however; they are also sensitive and can be damaged if not handled and maintained properly. They operate on a complex set of commands utilizing electronics and various sensors. They are used extensively in chemical plants, the utility industry, environmental industry, by emergency response providers, and in many other various work environments. Here is an inside look at what a 4-gas meter looks like when dissected. You can see that there are many intricate parts. All these parts must work in unison for a worker to be adequately protected when working in dangerous, or potentially dangerous environments.
