MSA ALTAIR and ALTAIR Pro Single-Gas Detectors
Every MSA ALTAIR single-gas listing we stock, with its price and add to cart: 7 listings, 7 part numbers; the MSA ALTAIR maintenance-free single-gas detector (CO, H2S or O2, sensors that operate for over 2 years) and the ALTAIR Pro (O2, ClO2, HCN or PH3 with a replaceable CR2 battery), as MSA lists them. Figures below are as published by the manufacturer. Ships in 1–2 business days; most orders arrive in 3–7 business days.
Monitors by part number (7)
| Part number | Item | Gases | Sampling | Version / kit | Price | ||
|---|---|---|---|---|---|---|---|
 | 10071361 | MSA 10071361 ALTAIR Single-Gas H2S Monitor, 5/10 ppm Alarms | H2S | Diffusion | alternate set points | $321.10 | |
 | 10071364 | MSA 10071364 ALTAIR Single-Gas Oxygen Monitor, 19.5/18.0% Alarms | O2 | Diffusion | alternate set points | $392.95 | |
 | 10074137 | MSA 10074137 ALTAIR Pro Oxygen Monitor, 19.5/23.0% Alarms, Black | O2 | Diffusion | black | $771.40 | |
 | 10076717 | MSA 10076717 ALTAIR Pro Chlorine Dioxide Detector, 0.1/0.3 ppm Alarms | ClO2 | Diffusion | — | $1159.80 | |
 | 10092521 | MSA 10092521 ALTAIR Single-Gas H2S Monitor, 10/15 ppm Alarms, Black | H2S | Diffusion | black | $135.86 | |
 | 10092522 | MSA 10092522 ALTAIR Single-Gas Portable CO Monitor, 25/100 ppm Alarms | CO | Diffusion | — | $392.95 | |
 | 10092523 | MSA 10092523 ALTAIR Single-Gas Oxygen Monitor, 19.5/23.0% Alarms, Black | O2 | Diffusion | black | $392.95 |
Source: Part numbers and descriptions as the manufacturer prints them; prices from the store.
ALTAIR single-gas specifications
| Item | MSA data |
|---|---|
| ALTAIR Single-Gas: Sampling | Diffusion |
| ALTAIR Single-Gas: Battery and run time | Sealed; sensors operate for over 2 years, as MSA states |
| ALTAIR Single-Gas: Approvals (selector) | CSA; ATEX |
| ALTAIR Pro: Sampling | Diffusion |
| ALTAIR Pro: Battery and run time | 3 V CR2 battery (MSA 10074132) |
| ALTAIR Pro: Approvals (selector) | CSA; IECEx |
Source: MSA Safety Equipment Catalog 2026-2027 (PDF), ALTAIR Maintenance-Free Single-Gas Detector page; MSA ALTAIR Single-Gas Detector product page; MSA Safety Equipment Catalog 2026-2027 (PDF), ALTAIR Pro Gas Detector page; MSA ALTAIR Pro product page.
ALTAIR single-gas sensor ranges
| Model | Gas | Range and resolution (as printed) |
|---|---|---|
| ALTAIR Single-Gas | carbon monoxide (CO) | alarms 25 ppm first, 100 ppm second (alternate set point models 30/60 and 35/100 ppm) |
| ALTAIR Single-Gas | hydrogen sulfide (H2S) | alarms 10 ppm first, 15 ppm second (alternate set point models 10/20, 5/10 and 7/14 ppm) |
| ALTAIR Single-Gas | oxygen (O2) | alarms 19.5% vol, 23% vol (alternate set point model 19.5% / 18%) |
| ALTAIR Pro | oxygen (O2) | alarms 19.50% low, 23.00% high (alternate set point model 18.00% / 19.50%) |
| ALTAIR Pro | hydrogen cyanide (HCN) | alarms 4.5 ppm low, 10 ppm high, STEL 10 ppm, TWA 4.7 ppm |
| ALTAIR Pro | chlorine dioxide (ClO2) | alarms 0.1 ppm low, 0.3 ppm high, STEL 0.3 ppm, TWA 0.1 ppm |
| ALTAIR Pro | phosphine (PH3) | alarms 0.3 ppm low, 1.0 ppm high, STEL 1.0 ppm, TWA 0.3 ppm |
Source: MSA Safety Equipment Catalog 2026-2027 (PDF), ALTAIR Maintenance-Free Single-Gas Detector page; MSA ALTAIR Single-Gas Detector product page; MSA Safety Equipment Catalog 2026-2027 (PDF), ALTAIR Pro Gas Detector page; MSA ALTAIR Pro product page.
Approvals, as MSA prints them
| Mark | As printed |
|---|---|
| ALTAIR Single-Gas: Approvals | CSA and ATEX certificates are listed on the MSA product page (document links below) |
| ALTAIR Pro: Approvals | CSA and IECEx certificates are listed on the MSA product page (document links below); the approval label is per part number |
Source: MSA Safety Equipment Catalog 2026-2027 (PDF), ALTAIR Maintenance-Free Single-Gas Detector page; MSA ALTAIR Single-Gas Detector product page; MSA Safety Equipment Catalog 2026-2027 (PDF), ALTAIR Pro Gas Detector page; MSA ALTAIR Pro product page. The label on the instrument governs.
ALTAIR single-gas documents
- Intro Sheet: ALTAIR Single-Gas Detector (PDF)
- Data Sheet: Training Program for MSA Portable Instruments Maintenance, Service & Repair (PDF)
- CSA-Haz Loc: ALTAIR / ALTAIR Pro (PDF)
- Addendum: Standards Compliance Certifications ALTAIR Pro Gas Detector (PDF)
- ALTAIR Pro Manual (PDF)
- Quick Start Guide: ALTAIR PRO Single Gas Detector (PDF)
Source: MSA product pages, fetched Nov 10 2026.
Guides: bump test vs calibration · how to read a gas monitor alarm · what Class I Div 1 means · ATEX vs intrinsically safe · sensor life · gas detection records · every gas monitor by gas, sampling and battery.
MSA ALTAIR and ALTAIR Pro Single-Gas Detectors questions
Which ALTAIR single-gas listings do you stock? 10071361, 10071364, 10074137, 10076717, 10092521, 10092522, 10092523.
Where do the figures on this page come from? From the MSA product pages and documents fetched Nov 10 2026 and the MSA bulletins and 2026-2027 catalog; each product page cites its source under every table.
How do I pick the right part number? Open the product page: it lists the gases, kit contents, fits and alarm set points as the manufacturer prints them, with the related part numbers in the same family.
Do you ship nationwide? Yes. Ships in 1–2 business days; most orders arrive in 3–7 business days.