MSA ALTAIR® 4XR - Multigas Detector

The Toughest 4-Gas Monitor on the Market. 4-Year Warranty.

The MSA ALTAIR 4XR is outfitted with rapid-response XCell sensors that detect gas twice as fast as the industry average, backed by a 4-year instrument and sensor warranty and a housing built to survive a 25-foot drop onto concrete. Paired with the ALTAIR Connect app, it delivers real-time incident awareness to team members and supervisors via Bluetooth.

Speed and Reliability

• XCell sensors: 2x faster gas detection than industry average
• 4-year instrument and sensor warranty
• Bump and calibrate with half the test gas in half the time vs. industry average
• Bump and calibrate at a scheduled time of day with MSA GALAXY GX2 Automated Test System

Ruggedness

• Survives 25 drops from 4 feet (MIL-STD-810G)
• Survives incidental 25-foot (7.5m) drop onto concrete
• IP68 rated: dust and waterproof at 2 meters for at least 1 hour
• Operating temperature: -40°F to +140°F (-40°C to +60°C)

Connectivity and Safety Features

• Bluetooth connection to ALTAIR Connect app for real-time incident awareness
• Update settings, send text notifications, and monitor events via app (Google Play)
• MotionAlert: notifies team if user becomes immobile
• InstantAlert: user-activated alarm for hazardous situations
• Bump LED and on-screen checkmark for quick compliance confirmation