MSA ALTAIR 2X

The MSA ALTAIR 2X uses advanced XCell® sensors to deliver some of the fastest toxic gas detection times in its class. Rapid response and recovery help workers recognise changing conditions sooner during confined space entry, plant maintenance, turnarounds or emergency response. High stability and accuracy reduce nuisance alarms, supporting clearer decisions in noisy, congested or time-critical situations.

Typical sensor lifespans of around four years, combined with an overall instrument life that often exceeds this, provide a durable monitoring solution that supports long-term operational continuity. The dual-gas ALTAIR 2XT Two-Tox model simultaneously monitors two toxic gases in a single detector, which can remove the need for a second instrument in many applications and reduce the equipment carried by personnel.

Long-life XCell sensors, minimal routine maintenance and low calibration gas usage combine to reduce the total cost of ownership. Fast sensor response and recovery allow calibration and bump tests to be completed with low gas flow rates, cutting calibration gas consumption and time out of service.

The ALTAIR 2XP variant incorporates XCell Pulse Technology to enable a stand-alone bump test without bottled calibration gas or additional accessories. An internal electronic pulse check, combined with a simple exhale flow check toward the sensor, provides a functional bump test that fits easily into daily routines. This reduces downtime, shortens maintenance windows and keeps detectors available on the job rather than in the workshop.

A replaceable lithium battery further extends field life and reduces whole-unit replacement costs, helping sites manage budgets while maintaining robust personal gas monitoring.

The ALTAIR 2X is engineered for challenging industrial environments. A robust over-moulded rubber or polycarbonate housing is tested to withstand multiple 25 ft (7.6 m) drops onto concrete, supporting long service life under frequent, rough handling. IP67 dust-tight and water-tight protection assures reliable operation in wet, dirty or dusty areas commonly encountered in oil and gas, utilities, mining, construction, general industry and fire service work.

Intrinsic safety and ATEX / IECEx approvals support use in potentially explosive or flammable atmospheres, including appropriate Zone 0 explosive gas environments as detailed in the Approvals tab. A wide operating temperature capability, with extreme ratings from -40 °C up to +60 °C, allows operation in hot process areas, cold outdoor sites and variable climate conditions. Optional glow-in-the-dark housing improves visibility and retrieval in low-light, smoke-filled or emergency scenarios.

The compact, lightweight design of the ALTAIR 2X (approx. 89 × 54 × 25 mm; 113 g) supports comfortable all-day wear for continuous personal monitoring. One-button, one-handed operation simplifies everyday use and keeps training requirements low, which is particularly valuable for large or rotating workforces. A backlit monochrome LCD with large characters presents gas readings and status information clearly, even in confined spaces or poor lighting.

A triple-alarm system combines a loud audible alarm, ultra-bright visual LEDs and a standard vibrating alarm to deliver multi-sensory notification of hazardous conditions. Distinct compliance indicators use a green LED flash and on-screen checkmark to signal a successful bump test, and a red flash when a bump has failed or expired, giving supervisors and workers an instant view of detector readiness. End-of-sensor-life warnings and alarms provide early notice that sensors require replacement, helping avoid unplanned downtime.

The ALTAIR 2X supports strong compliance practices through integrated data logging and event recording. It can log more than 100–150 hours of periodic measurements (model dependent) and store approximately 75 alarm or bump test events, building clear exposure histories and audit trails for investigations and regulatory inspections. Single-gas carbon monoxide models, for example, can record up to 150 hours of data plus 75 alarm events to document worker exposure patterns.

Real-time compliance status is visible at a glance through the LED indicators, supporting quick checks before deployment. The detector works with the MSA GALAXY® GX2 Automated Test System for automated bump testing, calibration and recordkeeping, and can be connected to MSA Grid, MSA Link Pro or similar software for centralised data management, reporting and fleet oversight. This makes the platform suitable for nationwide or multi-site operations that require consistent procedures and documentation.

The ALTAIR 2X family includes single-gas ALTAIR 2X, dual-gas ALTAIR 2XT (Two-Tox) and H2S-focused ALTAIR 2XP models. Across the range, variants cover a wide portfolio of toxic gases and configurations, enabling organisations to match detectors to specific site hazards while maintaining a common platform. Portable single-gas carbon monoxide versions provide focused CO monitoring with the same rugged housing, alarm package and logging capabilities.

Typical uses include confined space entry, welding areas, plant turnarounds, routine maintenance, emergency response and firefighting where toxic gas risks may be present in areas classified due to flammable gases or vapours. Confined space best practice recommends bump testing before each use; the stand-alone bump testing capability of the ALTAIR 2XP supports this requirement in both fixed facilities and remote locations. Minimal RF interference and robust electronics enhance reliability in challenging RF environments, while extensive configuration options for alarms, gas types and housing colours help align detectors with site standards and corporate safety policies.