MSA 10110443 Altair 4X Multigas Detector, LEL, O2, CO

Item #10110443

  • Tests for LEL, oxygen and carbon monoxide
  • Rugged Charcoal housing, designed to withstand drop up to 20 ft.
  • Features 95+ db alarm and ultra-bright LEDs


MSA’s Altair 4X Multi-Gas Detector for LEL, O2, CO raises the standard for personal multi-gas detectors by offering faster response time, 4-year sensor life  and less than 60 second calibration time. Bump test in under 15 seconds.

This unit's InstantAlert feature also allows users to manually alert others to a potentially hazardous situation. This detector is as tough and functional as it looks, offering distinctly ribbed rubber housing for secure grip and unsurpassed durability. A high-contrast display and three large, rubberized buttons enable easy operation in low-light conditions.

The rubber over-molded housing is easy to grip, provides unsurpassed durability, is rated IP 67 against dust and water ingress, and passes a 20  foot drop test. This unit is equipped with a 95+ dB audible alarm and ultra-bright alarm LEDs on both its top and bottom for maximum visibility.

Click here for the product specs for this item.

Lead Time : may be up to 14-21 business days. Lead times may vary during periods of high demand.


  • Dependable multi-gas detector tests for LEL, oxygen, carbon monoxide
  • Economical construction saves users more than 50% on calibration gas, replacement sensors and maintenance
  • Four-year sensor life means 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
  • Large buttons and high-contrast screen make operation easy in low-light conditions
  • Ribbed rubber housing provides secure grip and high durability
  • 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 tells others that user has become immobile
  • InstantAlert provides manual alarm to alert others of a dangerous situation


  • Oil, gas, and petrochemical
  • Confined spaces
  • Fire service
  • Utilities and telecommunications
  • Municipal works and waste water
  • Civil engineering

Spec Summary:



LEL: 0-100% 1%
02: 0-30% vol 0.1% vol
CO: 0-1999 ppm 1 ppm
H2S: 0-200 ppm 1 ppm
Drop Test: 20 feet
Housing: Rugged rubberized armor
Weight: 7.9 oz.
Dimensions (L x W x D): 4.4 x 3.0 x 1.31
Audible Alarm: >95 dB at 1 ft
Visual Alarm: 4 ultra-bright LEDs on top and bottom
Vibrating Alarm: Standard
MotionAlert & Instant Alert Feature: Included
Display: Monochrome high contrast LCD
Backlight: Adjustable time out
Battery: Rechargeable li-polymer
Run Time: 24 hours at room temperature
Charging Time: <4 hrs.
Operating Temperature Range: –20ºC to + 50ºC
Humidity: 15 - 90% RH non-condensing
Ingress Protection: IP 67
Data Log: Adjustable 50 hours minimum
Event Log: Standard 500 events
Standard Warranty: 3 years
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  • Attribute Set Name:

    Gas Detector

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