Designed for superior lifespan and high performance, with patented sensors that operate for over two years, the ALTAIR Single-Gas Detector is the smart choice for market-leading, cost-effective gas monitors. These units feature sensor options for carbon monoxide, hydrogen sulfide, and oxygen, coupled with LED/audible/vibrating alarms. Superior dust/water protection, high RFI resistance, and one-button operation provide heightened safety, plus increased durability and ease-of-use.