The Altair 4X from MSA is one our most popular multi gas detectors for standard gases: combustible LEL, oxygen, carbon monoxide and hydrogen sulphide. It’s ideal for applications including oil, gas, and petrochemicals, pharmaceuticals, chemicals, confined space, fire service, municipal works and also mining.
The sensors used in this gas monitor are advanced and provide fast and accurate results.
The Altair 4x has exclusive safety features which are ideal for confined space applications. The MotionAlert will activate when you become disabled and motionless and will alert others to your location. The InstantAlert is a button which can be pressed to manually alert others to a hazardous situation.

The Altair 4X from MSA is one our most popular multi gas detectors for standard gases: combustible LEL, oxygen, carbon monoxide and hydrogen sulphide. It’s ideal for applications including oil, gas, and petrochemicals, pharmaceuticals, chemicals, confined space, fire service, municipal works and also mining.
The sensors used in this gas monitor are advanced and provide fast and accurate results.
The Altair 4x has exclusive safety features which are ideal for confined space applications. The MotionAlert will activate when you become disabled and motionless and will alert others to your location. The InstantAlert is a button which can be pressed to manually alert others to a hazardous situation.