BW Technologies by Honeywell GasAlertMicroClip X3 Yellow Multi Gas Monitor (Combustible Gas, Oxygen, Hydrogen Sulfide, Carbon Monoxide) is the worlds most popular multi-gas detector, serving as your trusted companion in hazardous environments– keeping you safe without weighing you down. Plus, its the first multi-gas detector with a rating of IP68 for unmatched water protection. So you can be confident it will stand up to challenging conditions. Features visual compliance at a glance with the flashing, green IntelliFlash . Easy one-button operation reduces training time and lets workers focus on the job at hand.