Mil-spec to IP68, the Altair 4XR Gas Detector is the toughest 4-gas monitor on the market.
The rugged housing provides unsurpassed durability, including the ability to survive a 7.5m drop test onto concrete. And with large, glove-friendly buttons and a high-contrast display, the Altair 4XR is easy to operate in any work environment, even low-light conditions.

Outfitted with rapid-response MSA XCell® sensors, the 4XR features double the industry average of expected life, designed for an average life of more than four years.
An end-of-sensor-life indicator gives advanced warning to user, eliminating service outages.

The sensors’ controlling electronics is miniaturised and placed inside the sensor itself providing superior stability, accuracy, repeatability and fast response.

Test stand is required for connection to the MSA Safety Grid.