The MSA Altair 4XR is a rugged and reliable portable multigas detector designed for demanding industrial environments. It simultaneously monitors up to four gases typically including combustible gases (LEL), oxygen (O₂), carbon monoxide (CO), and hydrogen sulfide (H₂S) using fast-responding, long-lasting XCell® sensors.
The MSA Altair 4XR is a rugged and reliable portable multigas detector designed for demanding industrial environments. It simultaneously monitors up to four gases typically including combustible gases (LEL), oxygen (O₂), carbon monoxide (CO), and hydrogen sulfide (H₂S) using fast-responding, long-lasting XCell® sensors. Built to military-grade durability standards, the Altair 4XR is impact-resistant, waterproof (IP68), and operational in extreme temperatures. It features MotionAlert™ and InstantAlert™ functions to enhance worker safety, and it is compatible with the MSA Altair Connect app for real-time alerts (Bluetooth availability may vary by version). With a long-lasting battery, minimal maintenance requirements, and a 4-year warranty, the Altair 4XR is an excellent choice for industries like oil and gas, firefighting, mining, and confined space entry.
Ideal for comprehensive personal gas monitoring in hazardous environments
MSA XCell® Sensor Technology
High-performance XCell® sensors deliver fast response and stable accuracy
Long sensor life reduces replacement frequency and maintenance costs
CO and H₂S sensors typically rated for up to 4 years of service
Rugged and Durable Construction
Extremely robust housing designed for harsh industrial use
Survives multiple drops up to 7.6 m (25 ft) onto concrete
IP68 rated for superior dust and water protection
Extended Battery Performance
Rechargeable lithium-ion battery
Provides up to 24 hours of continuous operation on a single charge
Suitable for long shifts and extended field operations
High-Visibility Display
Large, high-contrast LCD display
Clear gas readings and alarm status, even in low-light conditions
Bright backlight for enhanced readability
Comprehensive Alarm System
Audible alarm approximately 95 dB
Ultra-bright LED visual alarms
Strong vibrating alarm for noisy environments
Instant alerts for gas exposure and hazardous conditions
Event and Data Logging
Automatic event logging for alarms and faults
Continuous data logging for exposure tracking
Supports safety audits and regulatory compliance
User-Friendly Operation
Simple one-button interface
Intuitive menus for quick setup and operation
Minimal training required for field personnel
Safety Certifications
Intrinsically safe for use in hazardous areas
Certified for industrial safety standards (certifications vary by region)
Maintenance and Calibration
Compatible with MSA GALAXY® GX2 automated test system
Quick bump testing and calibration
Reduced calibration gas consumption
Specifications of MSA ALTAIR 4XR Multigas Detector
Brand
MSA
Style
O2, H2S, CO
Power Source
Battery Powered
Color
BLACK
Product Dimensions
1.37″D x 3″W x 4.4″H
Item Weight
8.11 ounces
Alarm
Audible, Visual
Operating Humidity
95 percent
Upper Temperature Rating
50 Degrees Celsius
Sensor Type
Catalytic, Electrochemical
Number of Items
1
Manufacturer
MSA
Part Number
10178557
Item Model Number
10178557
Is Discontinued By Manufacturer
No
Item Package Quantity
1
Warranty Description
This product is covered by a 4 year warranty.
Typical Gas Detection Options of MSA ALTAIR 4XR
Oxygen (O₂) – Monitors oxygen levels to detect deficiency or enrichment.
Combustible gases (LEL) – Detects flammable gas concentrations to prevent explosions.
Carbon Monoxide (CO) – Toxic gas produced from combustion or incomplete fuel burning.
Hydrogen Sulfide (H₂S) – Toxic and flammable gas commonly found in oil, gas, and wastewater industries.
Applications of MSA ALTAIR 4XR Multigas Detector
Welding Operations Continuous monitoring of toxic gases generated during welding and cutting processes to protect personnel from harmful exposure.
Confined Space Entry Gas detection in tanks, vessels, pits, tunnels, and enclosed areas before and during entry to ensure safe working conditions.
Turnarounds and Plant Maintenance Personal gas monitoring during shutdowns, inspections, and maintenance activities in refineries, petrochemical plants, and industrial facilities.
Emergency Response Rapid detection of hazardous gases to support first responders during leaks, spills, or accidental releases.
Firefighting Operations Monitoring toxic gas exposure in fire and post-fire environments to enhance firefighter safety and situational awareness.
Additional Information
Part Number
ALTAIR 4X
Usually ships in
2-3 Days
Manufacturer
MSA Safety
Downloadable
MSA ALTAIR 4X Gas Detector
MSA ALTAIR 4XR Multigas Detector Datasheet
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