{"title":"Gas Detectors","description":"\u003cp\u003ePortable single-gas and multi-gas detectors for confined space entry, oil and gas operations, water treatment, and industrial environments where toxic or combustible gas hazards exist. We carry detectors for hydrogen sulfide (H2S), carbon monoxide (CO), oxygen (O2), combustible gases (LEL), ammonia (NH3), and four-gas combinations from US manufacturers including \u003ca href=\"\/companies\/msa-safety\"\u003eMSA Safety\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eChoose from maintenance-free disposable single-gas monitors with 2-year battery life for spot checks, and reusable multi-gas detectors with replaceable sensors for daily use. All comply with \u003ca href=\"\/resources\/building-codes-standards\/safety-compliance\/osha-1910-146\"\u003eOSHA 1910.146 permit-required confined space\u003c\/a\u003e requirements and are essential for pre-entry atmospheric testing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelated standards and guides:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/resources\/building-codes-standards\/safety-compliance\/osha-1910-146\"\u003eOSHA 1910.146 Permit-Required Confined Spaces\u003c\/a\u003e — Atmospheric testing requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/resources\/building-codes-standards\/safety-compliance\/osha-1910-134\"\u003eOSHA 1910.134 Respiratory Protection\u003c\/a\u003e — When gas levels trigger respirator use\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"msa-454-10092521","title":"MSA ALTAIR Single-Gas Detector Hydrogen Sulfide (H2S)","description":"\u003cp\u003eThe \u003ca href=\"\/companies\/msa-safety\"\u003eMSA Safety\u003c\/a\u003e ALTAIR Single-Gas Detector monitors hydrogen sulfide (H2S) concentrations in industrial environments. This maintenance-free unit features IP67 water resistance and drop-tested housing for jobsite durability. The detector runs on a replaceable Button cell battery with two-year operational life.\u003c\/p\u003e\n\n\u003cp\u003eTriple alarm system provides audible, visual, and vibrating alerts when H2S levels exceed safe thresholds. LCD display shows real-time gas readings and remaining battery life. Unit requires no calibration or routine maintenance during its service life. Made in USA construction meets industrial safety requirements.\u003c\/p\u003e\n\n\u003cp\u003eEssential for confined space entry, petrochemical facilities, wastewater treatment, and mining operations where hydrogen sulfide exposure poses risks. Compact design clips to clothing or hard hats for hands-free monitoring during work activities.\u003c\/p\u003e","brand":"MSA","offers":[{"title":"Each","offer_id":46756523606193,"sku":"454-10092521","price":187.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_51990426-28ef-4005-a46c-ee7212332e12.webp?v=1775889104"},{"product_id":"msa-454-10087913","title":"MSA Charger for Altair 4 \/ Altair 5 Multigas Detector","description":"\u003cp\u003eThis \u003ca href=\"\/companies\/msa-safety\"\u003eMSA Safety\u003c\/a\u003e charging cradle is designed specifically for Altair 4, 4X, 4XR, 5, and 5X multigas detectors. The charger provides reliable power management for these portable gas monitoring instruments used in confined spaces, industrial facilities, and hazardous environments. Made in USA construction ensures consistent quality and performance.\u003c\/p\u003e\n\n\u003cp\u003eThe charging cradle offers a stable platform for your Altair series detectors during charging cycles. It maintains proper electrical connections and protects the charging ports from damage during daily use. The unit is compatible across multiple Altair models, making it suitable for mixed fleets of gas detection equipment.\u003c\/p\u003e\n\n\u003cp\u003eThis charger is essential for maintaining continuous operation of your gas detection program. Keep detectors charged and ready for use in petrochemical plants, wastewater treatment facilities, and other environments where atmospheric monitoring is required.\u003c\/p\u003e","brand":"MSA","offers":[{"title":"Each","offer_id":46756533076145,"sku":"454-10087913","price":103.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_995bca26-54cd-42ab-b0e1-137ba68133a4.webp?v=1775889117"},{"product_id":"msa-454-10106729","title":"MSA XCell O2 Sensor Replacement Kit with Alarms (for Altair 4X \/ 5X)","description":"\u003cp\u003eThe \u003ca href=\"\/companies\/msa-safety\"\u003eMSA Safety\u003c\/a\u003e XCell O2 Sensor Replacement Kit provides oxygen detection for Altair 4X and 5X multigas detectors. This sensor replacement uses XCell technology for extended operational life and comes with an alarm calibration package to ensure proper detector function. The kit is designed specifically for oxygen monitoring applications in industrial environments where gas detection is critical.\u003c\/p\u003e\n\n\u003cp\u003eThis replacement sensor maintains compatibility with both Altair 4X and 5X series detectors, providing seamless integration without detector modifications. The XCell sensor technology delivers reliable oxygen detection with improved longevity compared to standard sensors. Each kit includes the necessary calibration components to verify proper alarm thresholds and detector response. Manufactured in the USA, this sensor meets MSA's quality standards for industrial gas detection equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe sensor replacement is essential for maintaining gas detector functionality in confined spaces, industrial facilities, and hazardous work environments. Regular sensor replacement ensures accurate oxygen level monitoring and proper safety alarm operation. This kit fits directly into existing Altair detector housings for quick field replacement without special tools.\u003c\/p\u003e","brand":"MSA","offers":[{"title":"Each","offer_id":46756533108913,"sku":"454-10106729","price":482.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/msa-sensor-10106729.jpg?v=1775891139"},{"product_id":"msa-454-710917","title":"MSA Hydrophobic Filter for FiveStar Alarm \u0026 Passport Personal Alarm","description":"\u003cp\u003eThe \u003ca href=\"\/companies\/msa-safety\"\u003eMSA Safety\u003c\/a\u003e 454-710917 hydrophobic filter is a replacement component designed specifically for FiveStar Alarm and Passport Personal Alarm gas detectors. This filter blocks moisture while allowing gas vapors to pass through, protecting the sensor from water damage that could cause false readings or equipment failure. Built to MSA's specifications for reliable operation in industrial environments.\u003c\/p\u003e\n\n\u003cp\u003eThis hydrophobic filter maintains the detection accuracy of your gas monitoring equipment by preventing water ingress into the sensor chamber. The filter's hydrophobic properties repel liquid water while remaining permeable to target gases, ensuring your detector continues providing accurate readings in humid conditions or when exposed to moisture. Made in the USA under MSA's quality standards.\u003c\/p\u003e\n\n\u003cp\u003eRegular filter replacement keeps your gas detection equipment operating at peak performance. This filter fits both FiveStar Alarm and Passport Personal Alarm models, making it suitable for confined space entry, industrial monitoring, and personal protection applications where gas detection is critical for worker safety.\u003c\/p\u003e","brand":"MSA","offers":[{"title":"Each","offer_id":46756533141681,"sku":"454-710917","price":44.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_67b3c710-eef9-48ec-b973-2fa4441c1037.webp?v=1775889120"},{"product_id":"msa-454-10048280","title":"MSA Econo-Cal RP Reactive Gas Calibration Cylinder 34 L 1.45% CH4 \/ 15% O2 \/ CO \/ H2S \/ Balance N2","description":"\u003cp\u003eThe \u003ca href=\"\/companies\/msa-safety\"\u003eMSA Safety\u003c\/a\u003e Econo-Cal RP Reactive Gas Calibration Cylinder delivers precise 4- and 5-gas detector calibration with a 34-liter capacity. This NIST-traceable gas mixture contains 1.45% methane, 15% oxygen, 60 ppm carbon monoxide, and 20 ppm hydrogen sulfide with nitrogen balance. The reduced pressure (RP) model provides reliable calibration standards for workplace gas detection equipment.\u003c\/p\u003e\n\n\u003cp\u003eBuilt to DOT Class 2 compressed gas specifications, this cylinder requires hazmat shipping protocols. The reactive gas mixture ensures accurate calibration across multiple gas types in a single cylinder, reducing inventory needs and simplifying calibration procedures. Each cylinder provides NIST-traceable accuracy for compliance with gas detection calibration requirements.\u003c\/p\u003e\n\n\u003cp\u003eThis calibration gas works with multi-gas detectors commonly used in confined spaces, industrial facilities, and construction sites where methane, oxygen deficiency, carbon monoxide, and hydrogen sulfide monitoring is critical. The 34-liter capacity provides multiple calibrations before replacement is needed.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVolume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e34 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMethane\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.45%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOxygen\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCarbon Monoxide\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydrogen Sulfide\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBalance Gas\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNitrogen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"MSA","offers":[{"title":"Each","offer_id":46756533174449,"sku":"454-10048280","price":580.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/msa-cylinder-10048280.jpg?v=1775890954"}],"url":"https:\/\/shop.usmadesupply.com\/collections\/gas-detectors.oembed","provider":"US Made Supply","version":"1.0","type":"link"}