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Gas Monitors & Sensors

BW Technologies by Honeywell Honeywell BW™ Flex4 Unfiltered Catalytic LEL Combustible Gas | Oxygen | Hydrogen sulfide | Carbon monoxide Multi-Gas Detector (wireless)

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BW Technologies by Honeywell Honeywell BW™ Flex4 Unfiltered Catalytic LEL Combustible Gas | Oxygen | Hydrogen sulfide | Carbon monoxide Multi-Gas Detector (wireless)

BW Technologies by Honeywell Honeywell BW™ Flex4 Unfiltered Catalytic LEL Combustible Gas | Oxygen | Hydrogen sulfide | Carbon monoxide Multi-Gas Detector (wireless)

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Airgas Part #:B86CPDW7X1H1M1B00

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

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Airgas Part #:I24VTS-K1232300101

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Industrial Scientific Ventis® Pro5 Portable Ammonia, Carbon Monoxide, Combustible Gas, Hydrogen Sulphide And Oxygen Multi Gas Monitor

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Industrial Scientific Ventis® Pro5 Portable Ammonia, Carbon Monoxide, Combustible Gas, Hydrogen Sulphide And Oxygen Multi Gas Monitor

Industrial Scientific Ventis® Pro5 Portable Ammonia, Carbon Monoxide, Combustible Gas, Hydrogen Sulphide And Oxygen Multi Gas Monitor

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Airgas Part #:I24VP5-KJ632110111

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

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Airgas Part #:I24VTS-K1231301101

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gases, Hydrogen Sulfide And Oxygen Multi Gas Monitor

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Airgas Part #:I24VTS-K1230-CPO

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Industrial Scientific MX6 iBrid® Portable Ammonia, Carbon Monoxide, Combustible Gas, Chlorine, Hydrogen Sulphide And Oxygen Multi Gas Monitor

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Industrial Scientific MX6 iBrid® Portable Ammonia, Carbon Monoxide, Combustible Gas, Chlorine, Hydrogen Sulphide And Oxygen Multi Gas Monitor

Industrial Scientific MX6 iBrid® Portable Ammonia, Carbon Monoxide, Combustible Gas, Chlorine, Hydrogen Sulphide And Oxygen Multi Gas Monitor

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Airgas Part #:I24MX6-KJ736211

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BW Technologies by Honeywell GasAlertMax XT II Portable Oxygen Gas Monitor

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BW Technologies by Honeywell GasAlertMax XT II Portable Oxygen Gas Monitor

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BW Technologies by Honeywell GasAlertMax XT II Portable Oxygen Gas Monitor

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Airgas Part #:B86XTX000YNA

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MSA ALTAIR® 5X Portable Combustible Gas, Oxygen, Carbon Monoxide, Hydrogen Sulfide And Sulfur Dioxide Multi Gas Monitor With Monochrome Display

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MSA ALTAIR® 5X Portable Combustible Gas, Oxygen, Carbon Monoxide, Hydrogen Sulfide And Sulfur Dioxide Multi Gas Monitor With Monochrome Display

MSA ALTAIR® 5X Portable Combustible Gas, Oxygen, Carbon Monoxide, Hydrogen Sulfide And Sulfur Dioxide Multi Gas Monitor With Monochrome Display

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Airgas Part #:MSA10116927

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BW Technologies by Honeywell GasAlertMax XT II Portable Combustible Gas And Oxygen Gas Monitor

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BW Technologies by Honeywell GasAlertMax XT II Portable Combustible Gas And Oxygen Gas Monitor

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BW Technologies by Honeywell GasAlertMax XT II Portable Combustible Gas And Oxygen Gas Monitor

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Airgas Part #:B86XTXW00YNA

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BW Technologies by Honeywell GasAlertMicro 5 Portable Combustible Gas, Hydrogen Sulfide, Oxygen, Sulfur Dioxide And Carbon Monoxide Detector

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BW Technologies by Honeywell GasAlertMicro 5 Portable Combustible Gas, Hydrogen Sulfide, Oxygen, Sulfur Dioxide And Carbon Monoxide Detector

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BW Technologies by Honeywell GasAlertMicro 5 Portable Combustible Gas, Hydrogen Sulfide, Oxygen, Sulfur Dioxide And Carbon Monoxide Detector

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Airgas Part #:B86M5XWSYRDDYN0

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MSA Replacement Altair® 4/5 Oxygen Sensor

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MSA Replacement Altair® 4/5 Oxygen Sensor

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MSA Replacement Altair® 4/5 Oxygen Sensor

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Airgas Part #:MSA10089163

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MSA ALTAIR® 5X Portable Combustible Gas, Oxygen, Carbon Monoxide And Hydrogen Sulfide Multi Gas Monitor With Color Display

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MSA ALTAIR® 5X Portable Combustible Gas, Oxygen, Carbon Monoxide And Hydrogen Sulfide Multi Gas Monitor With Color Display

MSA ALTAIR® 5X Portable Combustible Gas, Oxygen, Carbon Monoxide And Hydrogen Sulfide Multi Gas Monitor With Color Display

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Airgas Part #:MSA10116928

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BW Technologies by Honeywell GasAlertMicro 5 Portable Carbon Dioxide, Oxygen And Combustible Gas Detector

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BW Technologies by Honeywell GasAlertMicro 5 Portable Carbon Dioxide, Oxygen And Combustible Gas Detector

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BW Technologies by Honeywell GasAlertMicro 5 Portable Carbon Dioxide, Oxygen And Combustible Gas Detector

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Airgas Part #:B86M5IRXWB0RDDY

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RAE® Systems MicroRAE™ Portable Combustible Gas, Carbon Monoxide, Oxygen And Hydrogen Sulfide Gas Monitor

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RAE® Systems MicroRAE™ Portable Combustible Gas, Carbon Monoxide, Oxygen And Hydrogen Sulfide Gas Monitor

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RAE® Systems MicroRAE™ Portable Combustible Gas, Carbon Monoxide, Oxygen And Hydrogen Sulfide Gas Monitor

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Airgas Part #:R42M0311111200

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Industrial Scientific Radius BZ1 Portable Carbon Monoxide, Hydrogen Sulfide, Photo Ionization, Sulfur Dioxide And Oxygen Multi Gas Monitor

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Industrial Scientific Radius BZ1 Portable Carbon Monoxide, Hydrogen Sulfide, Photo Ionization, Sulfur Dioxide And Oxygen Multi Gas Monitor

Industrial Scientific Radius BZ1 Portable Carbon Monoxide, Hydrogen Sulfide, Photo Ionization, Sulfur Dioxide And Oxygen Multi Gas Monitor

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Airgas Part #:I24BZ1-K1235R1111

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BW Technologies by Honeywell GasAlertMicro 5 Portable Combustible Gas, Hydrogen Sulfide, Oxygen, Sulfur Dioxide And Carbon Monoxide Detector

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BW Technologies by Honeywell GasAlertMicro 5 Portable Combustible Gas, Hydrogen Sulfide, Oxygen, Sulfur Dioxide And Carbon Monoxide Detector

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BW Technologies by Honeywell GasAlertMicro 5 Portable Combustible Gas, Hydrogen Sulfide, Oxygen, Sulfur Dioxide And Carbon Monoxide Detector

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Airgas Part #:B86M5XWSYRPDYN0

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MSA ALTAIR® 4XR Portable Combustible Gas, Oxygen, Carbon Monoxide, and Hydrogen Sulfide Multi Gas Monitor (Glow-in-the-Dark Case)

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MSA ALTAIR® 4XR Portable Combustible Gas, Oxygen, Carbon Monoxide, and Hydrogen Sulfide Multi Gas Monitor (Glow-in-the-Dark Case)

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MSA ALTAIR® 4XR Portable Combustible Gas, Oxygen, Carbon Monoxide, and Hydrogen Sulfide Multi Gas Monitor (Glow-in-the-Dark Case)

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Airgas Part #:MSA10178571

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MSA ALTAIR® 4X Portable Methane, Oxygen, and Carbon Monoxide Multi Gas Monitor

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MSA ALTAIR® 4X Portable Methane, Oxygen, and Carbon Monoxide Multi Gas Monitor

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MSA ALTAIR® 4X Portable Methane, Oxygen, and Carbon Monoxide Multi Gas Monitor

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Airgas Part #:MSA10125913

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BW Technologies by Honeywell BW™ Clip4 Portable Hydrogen Sulfide, Combustible Gas, Oxygen And Carbon Monoxide Gas Monitor

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BW Technologies by Honeywell BW™ Clip4 Portable Hydrogen Sulfide, Combustible Gas, Oxygen And Carbon Monoxide Gas Monitor

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BW Technologies by Honeywell BW™ Clip4 Portable Hydrogen Sulfide, Combustible Gas, Oxygen And Carbon Monoxide Gas Monitor

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Airgas Part #:B86BWC4BN

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gas, Sulfur Dioxide And Oxygen Multi Gas Monitor

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Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gas, Sulfur Dioxide And Oxygen Multi Gas Monitor

Industrial Scientific Ventis® MX4 Portable Carbon Monoxide, Combustible Gas, Sulfur Dioxide And Oxygen Multi Gas Monitor

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Airgas Part #:I24VTS-K5131-CPO

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Identify Toxic Gas Leaks Fast

Easy-to-use single and multiple gas monitors and sensors at Airgas can keep you, the plant, and people who live nearby from becoming a victim of dangerous leaks and exposures. These invaluable life-saving devices come in a variety of convenient portable and clip-on formats from MSA, BW, Industrial Scientific, Honeywell, and other manufacturers. Not only can they help keep workers safe, but they can also keep the site in compliance.


Airgas is a leading single-source supplier for all things gases, welding equipment, and supplies, and safety products. Find it with us, anytime, anywhere at Airgas.com.