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Altair 4X

The ALTAIR 4X Multigas Detector surpasses industry standards in several crucial areas. Its four-year sensor life is 60% longer than the industry average, while its 24-hour run time exceeds the industry average by 71%. This versatile portable detector is a perfect match for industries ranging from fire fighting to welding, and its digital sensor output makes it less likely to suffer from RF interference. The unit features exclusive MotionAlert™, which lets others know if the user has become immobile and InstantAlert™, a manual alarm that alerts others of potentially dangerous situations. This rugged unit is designed to withstand a drop of up to 20 feet and uses less than half as much calibration gas as the industry average.

Altair 4X

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Approvals and standards

II 1G Ex ia IIC T4, -40°C to +60°C, IP67 (Zone 0 with no combustible sensor installed)
II 2G Ex ia d IIC T4, -40°C to +60°C, IP67 (Zone 1 with combustible sensor installed)


Confined Space
Combustible Detection
Toxic Detection
Oxygen Detection

Features and benefits

Dependable multigas detector tests for LEL, oxygen, carbon monoxide and hydrogen sulfide

Economical construction

Saves users more than 50% on calibration gas, replacement sensors and maintenance

Four-year sensor life

Detector lasts 60% longer than the industry average

Unit uses 50% less calibration gas per minute than the average detectors within the industry

Two-tox CO/H2S sensor

Removes practically all cross-channel interference

Ribbed rubber housing

Provides secure grip and high durability

Large buttons and high-contrast screen

Operation easy in low-light conditions

Unit features 95+ db alarm and ultra-bright LEDs

Exclusive end-of-sensor warning

Cautions user when unit’s sensor needs to be changed

MotionAlert option

Warns others that user has become immobile

InstantAlert provides manual alarm

Alerts others of a dangerous situation


Oil & Gas
General Industrial
Water Treatment