The MSA Altair 4x Multi Gas Monitor is a reliable and advanced device designed to detect various gases such as LEL, O2, CO, and H2S. With the trusted brand of MSA, this gas monitor ensures accurate and timely detection of hazardous gases in industrial and commercial settings. Its ability to monitor multiple gases simultaneously makes it a valuable tool for ensuring safety and compliance in a range of environments. Ideal for business, office, and industrial applications, the MSA Altair 4x Multi Gas Monitor provides peace of mind and protection for personnel and operations. Used but in good condition.