ALTAIR 4XR Multi Gas Detector is the toughest 4 gas monitor and provides real-time incident awareness when paired with the MSA ALTAIR Connect app.

A 4 Gas Monitor for Confined Space detects carbon monoxide (CO), oxygen (O2), hydrogen sulfide (H2S), and combustibles (EX). Used in confined spaces such as tanks, vessels, silos, and tunnels.

This 4-gas detector simultaneously monitors oxygen (O2), hydrogen sulfide (H2S), combustible gas (LEL) and choice of either carbon monoxide (CO) or sulfur dioxide (SO2). As its name suggests, this device uses simple icons to notify workers of gas levels in confined spaces.

Multi-gas monitors are designed to protect workers in a variety of environments, including enclosed spaces like manholes, sewers, and other areas with poor ventilation. They detect gases like oxygen (O2 Monitor), hydrogen sulfide (H2S Monitor), carbon monoxide (CO Monitor), and lower explosive levels (LEL Monitor) of a variety of combustible gases.

Outfitted with rapid-response MSA XCell® sensors, the ALTAIR 4XR Gas Detector is the toughest 4-gas monitor on the market and is backed by a 4-year or 5-year warranty.