MSA Altair Single gas detector

(inc. VAT)

The MSA ALTAIR is a reliable high-performance single-gas detector that is simple to use and extremely economical. Designed for superior lifespan (patented sensors operate for over two years) and high performance, the ALTAIR single-gas detector is the smart choice for market-leading, cost-effective gas monitors. Features sensors for hydrogen sulphide coupled with LED/audible/vibrating alarms. Superior dust/water protection, high RFI resistance, and one-button operation provide heightened safety, plus increased durability and ease of use.

  • Records the last 25 alarm events automatically, offering the ability to assess recent alarm conditions
  • Patented electrochemical sensors and MSA-built button sensors
  • MSA Link via built-in IR communication port
  • Triple alarm system effectively alerts the wearer to any danger
  • Single button press to carry out bump check test
  • Simple, easy-to-read display
  • Designed to withstand a 3m drop test
  • Two years or 1080 alarm minutes of service life under warranty with no maintenance
  • H2S sensors
  • Stainless steel and solid electrolyte construction virtually eliminate sensor leakage
  • Rubberised armour housing

Full description


ALTAIR - Maintenance-Free Single-Gas Detector

The MSA ALTAIR is a reliable high-performance single-gas detector with sensor options of H2S , CO or O2. There is no requirement for maintenance over its lifetime making the ALTAIR a extremely economical instrument.

Maintenance-Free Service Life

The ALTAIR provides two years or 1080 alarm minutes of service life under warranty with no maintenance. This instrument will not deactivate after two years of operation but will continue to perform as long as battery capacity allows. No calibration, sensor change or battery change is needed.

Easy To Read Display

The ALTAIR incorporates a simple, easy to read display. The large numeric display allows users to count down instrument life, alarm conditions, set points, peak reading and hours in alarm since activation with accuracy and confidence. The O2 version can display the current level as well as its highest and lowest readings at a glance.

Bump Check Indicator

By confirming “Gas Test” with a single button press, the unit allows for a simple bump check, which will be recorded and displayed on the screen as a checkmark for 24 hours. With its built-in gas delivery adapter there are no additional accessories required to carry out a bump check.

Robust Design

The ALTAIR is IP 67 rated and is designed to withstand a 3 m drop test. The extra thick rubberised housing provides protection from accidental drops and helps provide a tight seal, offering simple yet effective resistance to water and dust ingress. Metal screw inserts offer a high level of structural stability over the unit’s lifetime.

Reliable Clip

With the proven suspension clip fitted as standard the ALTAIR and can be worn securely anywhere. This rugged clip design keeps the unit attached during even the roughest use.

Distinctive Alarm System

The superior triple alarm system fitted to the ALTAIR effectively alerts the wearer to any danger. It consists of a distinctive audible alarm of 95 dB at 30 cm, super-bright LEDs visible from a 320o angle and a strong vibration alarm. The numeric display also shows “LO” or “HI” alarm status. [ Event Log ] The ALTAIR will record the 25 latest alarm events automatically, offering the ability to assess recent alarm conditions. Connect it to your MSA IR-Jeteye using the standard built-in IR communication to read the data or to change alarm set points via FiveStar Link 4.3.

Patented Sensors

Patented, MSA Button toxic gas sensors are fitted to both the CO and H2S ALTAIR, while the O2 version accommodates a fast responding 20 series sensor.

Simple Testing

The detector’s visual, audible and vibrating alarms along with response to a known gas concentration can be check ed by ALTAIR QuickCheck. To test the ALTAIR, simply press the button and place it into the test station.


The GALAXY automated record keeping and calibration test system is a completely stand alone system that does not require a computer or network interface. Up to 10 GALAXY modules can be connected together allowing multiple instruments to be simultaneously tested, calibrated and charged. Over 1000 individual test records can be stored on an industry standard flash card. An optional wired connection is also available.


Type of gas detector
Single Gas
Ingress Protection Rating
Gas Type(s)
CO Carbon Monoxide 0-500ppm, H2S Hydrogen Sulphide 0-100ppm, O2 Oxygen 0-25% Vol,
ATEX II 2G EEx ia IIC T4 –20 °C to +50 °C
Operating Range
-20C to 50C
Relative Humidity
10-95% Non-condensing
Event Logging
25 latest events
2 years or 1080 alarm minutes
Confined Space
Type of gas detector
Single Gas

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