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Battery-powered, direct-reading instruments are classified as two groups—single-gas instruments or multiple-gas instruments—typically monitoring one or a combination of the following atmospheric conditions:
1. oxygen deficiency or enrichment;
2. the presence of combustible gas; and
3. the presence of certain toxic gases.
 Depending on the capabilities of the instrument, monitoring can be conducted simultaneously for oxygen and combustible gas, or for oxygen, combustible gas and toxic gases. These devices are commonly referred to as 2-in-1, 3-in-1, 4-in-1 or 5-in-1 alarms.
No matter which type of instrument is used to check environmental gas concentrations, regular monitoring should be performed because a contaminant’s level of combustibility or toxicity might increase even if it initially appears to be low or non-existent. In addition, oxygen deficiency can occur unexpectedly. MSA's Instrumentation: ALTAIR® 5 Multigas Detector
The ALTAIR 5 Multigas Detector is MSA’s latest portable instrument for detection of many toxic gases. This innovative unit offers these exclusive portable instrument features:
• Standard MotionAlert™ feature to indicate “man-down”
• InstantAlert™ feature to alert those around you
• Optional high-resolution color display
• Logo Express® Service option for customized instruments
• Great impact durability
• Excellent dust and water ingress protection
• Multilingual at no extra cost
• Standard graphical display
• Diffusion mode or internal pump
• Rechargeable or alkaline battery options
| Galaxy® Automated Test System
The Galaxy Automated Test System is an easyto-use, versatile and durable calibration and test system that uses the latest technology to provide simple, reliable performance in a design that withstands the harshest of environments. Versions are available for the Solaris Multigas Detector, Orion Multigas Detector, Sirius Multigas Detector and the ALTAIR and ALTAIR Pro Single-gas Detectors. | ALTAIR® 4 Multigas Detector
The ALTAIR 4 Multigas Detector for LEL, CO, H2S, and O2 is a super-durable, competitively-priced, personal multigas detector. The ALTAIR 4 Multigas Detector is the only portable gas detector with an optional MotionAlert™ feature if a user should become disabled due to unforeseen hazards. When enabled, the MotionAlert feature will activate if the instrument does not detect motion for 30 seconds, and is ideal for confined space entry applications. This unique gas detector function can be easily turned off by the user. | ALTAIR® and ALTAIR Pro
Single-Gas Detectors
ALTAIR Single-Gas Detector
• Maintenance-free monitoring with 2-year lifespan
• Sensors: carbon monoxide, hydrogen
sulfide & oxygen ALTAIR Pro Single-Gas Detector
• Replaceable sensor and battery
• Sensors include: ammonia, carbon monoxide, chlorine, hydrogen sulfide, oxygen & sulfur dioxide.
Other sensor options available. | Orion® Multigas Detector
The Orion Multigas Detector is a low-cost, four-gas portable detector featuring onebutton calibration, rugged construction with excellent resistance to dust and water penetration, and a 16- to 20-hour run time. The Orion Detector includes an internal pump and charger and detects CO, H2S, and O2, combustible gas.
| ALTAIR Pro Single-Gas Detector
• Replaceable sensor and battery
• Sensors include: ammonia, carbon monoxide, chlorine, hydrogen sulfide, oxygen & sulfur dioxide.
Other sensor options available. | Sirius® PID Multigas Detector
The Sirius® Multigas Detector provides users outstanding multifunctional capabilities by allowing users to simultaneously monitor for volatile organic compounds (VOCs) with low vapor pressures while measuring for combustible, toxic and oxygen-deficient atmospheres within one reliable, easy-to-use, durable unit. | Both units feature:
• Reliable performance with easy one-button operation
• Superior dust and water protection and high RFI-resistance
• Large, clear, backlit LCD
• Distinctive triple-alarm system |
For more information about MSA Gas Detectors click here.
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Gas Detection Instruments
