MSA ALTAIR 4XR Multi Gas Detector

Code: 10211185 & 10178573
  • 4 Gas Monitor
  • Wireless connectivity
  • Motion & Preemptive Alerts

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MSA ALTAIR 4XR Portable Multi-Gas Detector uses XCell rapid response sensors for Flammable, Oxygen, Carbon Monoxide and Hydrogen Sulphide gases.

Bluetooth connection to a mobile device is possible using the ALTAIR Connect app, allowing detector configuration, text message alerting and transmitting real-time information such as alarm events to others.

Designed to be durable, it will survive a 7.5-metre (25 feet) drop and 25 drops from 1.2 metres (4 feet).

Compatible with the Galaxy GX2 automated bump test and calibration station.


  • Four-year warranty as standard, extendable to five years (option)
  • Ingress Protection IP68 can withstand submersion of 2 metres for at least one hour
  • Nitrogen Dioxide and Sulfur Dioxide sensor options
  • Operating temperature range: -40°F to +140°F (-40°C to +60°C)
  • Data logging included up to 500 events, more than 50 hours
  • Less gas & time needed for bump testing or calibration
  • MIL-STD-810G 516.6 transit drop third-party certified
  • The alarm is triggered if the operator remains motionless
  • Instant Alert warns others of hazards discovered
  • Compliance – visual indication of bump test by LED lights; red indicates required, green denotes ok to use
  • Pump-probe with charger option for entry checks or confined space work
  • Case charcoal grey or glow-in-the-dark – phosphorescent
  • Size  11 cm x 7.6 cm x 3.5 cm, 4.4” x 3.0” x 1.4”, 228g (8oz)

Sensor ranges

  • LEL 0–100 %
  • O₂ 0–30 %
  • CO 0–1999 ppm
  • H₂S 0–200 ppm
  • H₂S-LC 0–100 ppm
  • SO₂ 0–20 ppm
  • NO₂ 0–50 ppm

The Altair 4XR monitor is supplied with the following: rechargeable battery pack, charging cradle, calibration cap, and tubing.

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Title Size
MSA ALTAIR-4XR Brochure 1 MB
ALTAIR 4XR Quick Start Guide 338 KB
Altair 4XR Manual 1 MB
Altair 4XR International Certification & Conformity 2 MB

Additional information

Weight 0.190 kg

Ordering Information

Standard configured part numbers, others available, supplied with European charger

10178569 A-ALT4XR-L-1-A-E-E-0-0-G-0-0 : Pentane, O2, H2S & CO. Glow-in-the-dark case.
10178570 A-ALT4XR-H-1-A-E-E-0-0-0-0-0: Methane 0-100% LEL, O2, H2S & CO. Charcoal case.
10178573 A-ALT4XR-L-1-A-E-E-0-0-0-0-0: Pentane, O2, H2S & CO. Charcoal case.
10178581 A-ALT4XR-H-1-H-E-E-0-0-0-0-0: Methane 0-100% LEL, O2, & H2S-LC. Charcoal case.
10178582 A-ALT4XR-H-1-G-0-E-0-0-0-0-0: Methane 0-100% LEL, O2, H2S-LC & CO. Charcoal case. No charger

North America part numbers

10178557 LEL, O₂, CO, H₂S Charcoal
10178558 LEL, O₂, CO, H₂S Phosphorescent

XCell Sensor Replacement Kits

10106722 Ex combustible sensor
10106729 O2 sensor
10106725 CO/H2S two-tox sensor
10121211 EX-H sensor (Heavy Hydrocarbons & Solvents)
10121212 EX-M sensor (Mining: Methane)
10121213 H2S-LC/CO (Low Concentrations H2S)
10121214 H2 Resistant CO Sensor
10121215 SO2 / H2S-Low Concentrations (SO2 / H2S-LC)
10121217 CO/NO2 sensor

Calibration & Bump Test Equipment

10053022 Gas Can [58 l] 1.45% CH4, 60 ppm CO, 20 ppm H2S, 15% O2. Norrscope equivalent available
467895 Pressure Reduction Valve 0.25 l/min
10089321 Calibration Clip/Mask (replacement part)


10086638 240V Main charger cradle (spare)
10095774 12V Vehicle charger cradle
10082834 For Data Transfer; JetEye IR Adaptor with USB Connector MSA Link Software on disc or downloadable free
10152668 Altair Pump-Probe With Charger
10153040 Altair Pump-Probe Without Charger
10151096 Sample Line, PU, Conductive,3M
10151104 Sample Line, PU, Conductive,8M
10151097 Sample Line, PU, Conductive,15M
10160208 Sample Line, PU, Conductive,30M
10152079 Multi-functional carrying case for ALTAIR 4X/R and ALTAIR 5X
10150259 Shoulder Strap (ATEX)


10069894 SS Suspender Clip
10110061 LCD Frame assembly [frame LCD, zebra strips, screws]
10179265 4XR LCD replacement
10105650 Housing: Blank Sensor, XCell Sensor
10110062 Kit: Sensor Gasket, Screws, Altair4X / 4XR

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