MSA ALTAIR 4XR Multi Gas Detector

  • Phosphorescent case option
  • Wireless connectivity
  • Wide Range Of Gases

In Stock
Make An Enquiry

MSA ALTAIR 4XR Multi Gas Detector is a portable device measuring four gases simultaneously. A standard configuration reads Combustible LEL, Oxygen, Carbon Monoxide and Hydrogen Sulphide, with toxic options for Nitrogen Dioxide and Sulfur Dioxide. Motion Alert is included notifying others of a man down. An Instant Alert feature provides warning to others of a hazardous situation.

The Altair 4XR can connect to a mobile device by Bluetooth using the ALTAIR Connect app, which allows configuration of the detector and transmission of real-time information to other workers. For example sending alarm events. Bluetooth operation is dependent upon signal availability of a wireless service.

Designed to be durable; can survive an impact of a 7.5 metre fall (25 feet) onto concrete and 25 drops from 1.2 metres (4 feet).

Bump test and calibrate using half the gas consumption and in half the time, compared to industry average. Compatible with Norrscope stocked GALAXY GX2 automated bump test and calibration station, which includes the facility to time schedule testing.

  • Four year warranty as standard, extendable to five years (option)
  • Ingress Protection IP68 can withstand submersion 2 metres for at least one hour
  • XCell rapid response sensors
  • Operating temperature range: -40°F to +140°F (-40°C to +60°C)
  • Data logging included up to 500 events, more than 50 hours
  • MIL-STD-810G 516.6 transit drop third party certified
  • ALTAIR Connect app allows text message alerting
  • Compliance – visual indication of bump test by LED lights; red indicates required, green indicates safe to use
  • Pump probe with charger option for entry checks or confined space work
  • Case charcoal grey or glow in the dark
  • 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

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

Enquire About This Product

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

Weight0.190 kg
Gas Type

Multi Gas

Ordering Information

Altair 4XR

Sensor Choices

1. Combustible (LEL)
2. Oxygen
3. Dual Toxic
a. CO / H2S
b. CO (H2-Resistant) / H2S
c. CO / H2S-LC
d. CO / NO2
e. SO2 / H2S-LC

Standard configured part numbers, others available

10178569A-ALT4XR-L-1-A-E-E-0-0-G-0-0 :LEL, O2, H2S & CO. Glow-in-the-dark case. European charger
10178570A-ALT4XR-H-1-A-E-E-0-0-0-0-0: Methane 0-100% LEL, O2, H2S & CO. Charcoal case. European charger
10178573A-ALT4XR-L-1-A-E-E-0-0-0-0-0: LEL, O2, H2S & CO. Charcoal case. European charger
10178581A-ALT4XR-H-1-H-E-E-0-0-0-0-0: Methane 0-100% LEL, O2, & H2S-LC. Charcoal case. European charger
10178582A-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 display replacement
10105650 Housing:Blank Sensor,XCell Sensor
10110062 Kit:Snsr Gasket,Screws,Altair4X / 4XR

Enquire About This Product