Safety at the Speed of NOW!

The MSA Altair® 4XR sets the standard for superior gas detection performance, reliability, and durability. Outfitted with rapid-response MSA XCell® sensors, it senses gas a remarkable 2 times faster than the industry average, ensuring rapid response to potential hazards.

The quality of the Altair® 4XR is backed with a 4-year instrument and sensor warranty, providing you with peace of mind and confidence in your safety equipment. Additionally, the Altair 4XR features intuitive features such as the Bump LED and on-screen checkmark, allowing you to quickly confirm compliance and ensure that your instrument is operating effectively.

Experience unparalleled gas detection capabilities with the MSA Altair 4XR and stay ahead of potential risks in your workplace.

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  • Sense gas 2 times faster than the industry average with our XCell sensors
  • Survives 25 drops from 4 feet (1.2 meters) (MIL-STD-810G 516.6 Transit Drop 3rd Party Certified)
  • Can survive an incidental 25-foot (7.5-m) drop onto concrete
  • Dust- and waterproof IP68 rating (2 meters for at least 1 hour)
  • Operating temperature range: -40°F to +140°F (-40°C to +60°C)
  • 4-year instrument & sensor warranty
  • Confirm compliance quickly with the Bump LED & on-screen checkmark
  • Bump and calibrate with 1/2 the test gas and in 1/2 the time vs. industry average
  • Bump and calibrate at a specified "Time of Day" with your MSA GALAXY® GX2 Automated Test System
  • MotionAlert option tells others that user has become immobile
  • User-activated InstantAlert notifies others of a potentially dangerous situation

  • Size: 4.4 x 3.0 x 1.4 inches / 11 cm x 7.6 cm x 3.5 cm
  • Weight: 8 oz (228 g)
  • Temperature: -40°F to +140°F / -40°C to +60°C
  • Relative Humidity: 5% - 95% intermittent / 15% - 90% non-condensing
  • Alarms and Type:
    • Visual
    • Vibrating
    • Audible
    • Motion Alert (Man Down)
  • Battery Life: Rechargeable Li-polymer battery 24-hour run-time
  • Charge Time: > 4 Hours
  • Datalogging: > 50 hours (adjustable) / > 500 event logs
  • Warranty: 4 years (+ optional 1-year extension)

Sensor Type Measuring Range Resolution
H2S 0 - 200 ppm 1 ppm
H2S-LC 0 - 100 ppm 0.1 ppm
CO 0 - 1999 ppm 1 ppm
LEL 0 - 100% 1%
O2 0 - 30% 0.1%
SO2 0 - 20 ppm 0.1 ppm
NO2 0 - 50 ppm 0.1 ppm

Request a Demo

Schedule a demo with the experts at Electrogas to experience firsthand the innovative safety solutions we offer. Our team is dedicated to providing personalized demonstrations tailored to your specific needs and requirements.

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