MSA – ALTAIR 4XR Multigas Detector

The MSA ALTAIR 4XR is designed for rapid detection and maximum durability in hazardous environments. Available for hire, servicing and purchase.

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        MSA – ALTAIR 4XR Multigas Detector

        The MSA ALTAIR 4XR is a robust, high-performance handheld gas monitor designed for rapid detection and maximum durability in hazardous environments. Featuring MSA XCell sensors, it detects gases twice as fast as the industry average, ensuring faster response times and enhanced safety.

        Engineered for convenience and efficiency, the ALTAIR 4XR’s intelligent software connects to the ALTAIR Connect app, allowing users to update settings and configurations on the go. This seamless connectivity also enables event notifications via text, ensuring critical alerts are sent to the right people immediately — ideal for high-risk working conditions.

        Compliance is quick and easy with the ALTAIR 4XR. The Bump LED and on-screen checkmark indicator provide instant confirmation that the device is functioning correctly. For added efficiency, the unit requires half the test gas and half the time for bump tests and calibration compared to industry standards. When paired with the MSA GALAXY GX2 Automated Test System, you can schedule bump tests and calibration at a designated Time of Day, helping you stay compliant with minimal effort.

        Designed with user safety in mind, the ALTAIR 4XR includes essential alert features. The MotionAlert function automatically triggers an alarm if the user becomes immobile, while the InstantAlert feature allows users to manually signal dangerous situations — providing crucial communication during emergencies.

        With an operating temperature range of -40°C to +60°C, the ALTAIR 4XR is built to perform reliably in extreme conditions. Its ultra-rugged casing is designed to survive 25 drops from 1.2 metres and can even endure an accidental 7.5-metre drop onto concrete. The IP68-rated enclosure ensures complete protection against dust and water, keeping internal components safe from corrosion and damage.

        For added peace of mind, the ALTAIR 4XR is backed by a 4-year manufacturer’s warranty on both the instrument and sensors, ensuring long-term reliability and minimal maintenance.

        Key Features

        • XCell sensors detect gas twice as fast as the industry average
        • Easy settings updates via the ALTAIR Connect app (available on Google Play)
        • Event notifications can be sent via text using the ALTAIR Connect app
        • Survives 25 drops from 1.2m (MIL-STD-810G) and 7.5m accidental drops onto concrete
        • IP68-rated for dust and waterproof protection (2m for at least 1 hour)
        • Operates in extreme temperatures from -40°C to +60°C
        • Backed by a 4-year warranty on both instrument and sensors
        • Quick compliance checks with the Bump LED and on-screen checkmark
        • Bump tests and calibration require half the gas and half the time compared to standard devices
        • Schedule bump and calibration tests with the MSA GALAXY GX2 system
        • MotionAlert notifies others if the user becomes immobile
        • InstantAlert allows manual signalling of hazardous situations
        • Additional configurations available — contact us for details

        Combining rapid response times, advanced connectivity, and exceptional durability, the MSA ALTAIR 4XR Multigas Detector is the ultimate tool for professionals working in tough, hazardous environments.


        Frequently Asked Questions

        Can’t find your answer? Get in touch with our team.

        • You will be supplied with a battery for the Altair 4XR.

        • You will need Wifi or Mobile Data in order to connect to the app.

        • Yes, the Altair 4XR is waterproof up to 6ft (2m) for a maximum time of 1 hour.

        • No, however we would suggest that you undertake a Confined Space Course which covers the use of gas monitors. Our sister company Citrus Training offers these courses.