The ALTAIR Single-Gas Detector will operate for over two years. This long lifespan, coupled with the unit's 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.