The ALTAIR® Single-Gas Detector will operate for over two years. This long lifespan, coupled with the units high performance, results in one of the most cost-effective monitors on the market. Advanced design offers superior dust and water protection and high resistance to RFI. A rubberized housing and one-button operation provide the durability and ease of use users expect from MSA instruments. The triple-alarm system featuring two bright LEDs, a piercing audible alarm, and a vibrating alarm ensures that no alarm condition goes unnoticed. The ALTAIR® Detector automatically records the last 25 alarm and test events. To read data or change alarm set points simply connect the unit to an MSA infrared adapter using the built-in IR communication port.