There are many different gas detectors on the market. Some detect one type of gas while others will detect many. In order to determine which gas detector is best you need to evaluate the needs of your company. Do you need a gas detector that is capable of detecting one specific type of gas or many types of gas? If you are looking for a gas detector that can detect multiple types of gas as soon as they are in the air then RAE systems offers several different detectors that might work. The Minirae is an excellent option because it detects many different types of gases. Not to mention it is super tough, has easy to operate keys, and can be made wireless. This detector is perfect for hazmat or homeland security. There are other similar gas detectors on the market but your exact use and need should be evaluated first to determine which type of detector would work best. A cross review of several gas detectors against the needs of your company will help you find the one that is best.