MSA Single-Gas Monitors
15 single-gas monitors from MSA, listed with what MSA publishes, and live prices.
Pick a gas, number of gases, sampling or battery; the list below narrows as you choose. Prices are live.
15 products
Ratings and specifications are as published by each manufacturer. Tap a group to open it.
MSA15 products
- MSA 10071361 Single Gas Monitors, ALTAIR 5X Hydrogen Sulfide Detector — MSA · Gases detected: H2S · Gases: 1 gas · Sampling: Pump (sample draw)
- MSA 10071364 Single Gas Monitors, ALTAIR Oxygen Detector — MSA · Gases detected: O2 · Gases: 1 gas · Sampling: Diffusion
- MSA 10074137 Single Gas Monitors, ALTAIR Pro Oxygen Detector — MSA · Gases detected: O2 · Gases: 1 gas · Sampling: Diffusion
- MSA 10076717 Single Gas Monitors, ALTAIR Pro Single-Gas Chlorine Dioxide (ClO2) — MSA · Gases detected: ClO2 · Gases: 1 gas · Sampling: Diffusion · Approvals: IP67
- MSA 10092521 Single Gas Monitors, ALTAIR Single-Gas H2S Detector — MSA · Gases detected: H2S · Gases: 1 gas · Sampling: Diffusion
- MSA 10092522 Single Gas Monitors, ALTAIR Carbon Monoxide Detector — MSA · Gases detected: CO · Gases: 1 gas · Sampling: Diffusion
- MSA 10092523 Single Gas Monitors, ALTAIR Oxygen Detector — MSA · Gases detected: O2 · Gases: 1 gas · Sampling: Diffusion
- MSA 10153984 Single Gas Monitors, ALTAIR 2XP Hydrogen Sulfide Detector — MSA · Gases detected: H2S · Gases: 1 gas · Sampling: Diffusion · Sensor ranges: H2S 0-200 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
- MSA 10153986 Single Gas Monitors, ALTAIR 2XT Carbon Monoxide Detector — MSA · Gases detected: CO · Gases: 1 gas · Sampling: Diffusion · Sensor ranges: CO 0-1,999 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
- MSA 10154073 Single Gas Monitors, ALTAIR 2XT Carbon Monoxide And Nitrogen — MSA · Gases detected: CO; NO2 · Gases: 2 gases · Sampling: Diffusion · Sensor ranges: CO 0-1,999 ppm; NO2 0-50 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
- MSA 10154077 Single Gas Monitors, ALTAIR 2XT Sulfur Dioxide Detector — MSA · Gases detected: SO2 · Gases: 1 gas · Sampling: Diffusion · Sensor ranges: SO2 0-20 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
- MSA 10154078 Single Gas Monitors, ALTAIR 2X Nitrogen Dioxide Detector — MSA · Gases detected: NO2 · Gases: 1 gas · Sampling: Diffusion · Sensor ranges: NO2 0-50 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
- MSA 10154079 Single Gas Monitors, ALTAIR 2X Ammonia Detector — MSA · Gases detected: NH3 · Gases: 1 gas · Sampling: Diffusion · Sensor ranges: NH3 0-100 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
- MSA 10154080 Single Gas Monitors, ALTAIR 2X Chlorine Detector — MSA · Gases detected: Cl2 · Gases: 1 gas · Sampling: Diffusion · Sensor ranges: Cl2 0-10 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
- MSA 10157971 Single Gas Monitors, ALTAIR 2X Carbon Monoxide Detector — MSA · Gases detected: CO · Gases: 1 gas · Sampling: Diffusion · Sensor ranges: CO 0-1,999 ppm · Approvals: Intrinsically safe (ATEX, IEC, CSA), -40 to 60 °C; IP67
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In plain words. A gas monitor is described by the gases it detects (LEL for combustibles, O2 for oxygen, H2S, CO, and so on), how many it detects at once, whether it samples by diffusion (air reaches the sensors on its own) or with a pump (sample draw, for checking a space before entry), how it is powered, and the approvals that let it be used in a classified area. All of these are the manufacturer's published specifications; alarm points and calibration intervals follow the manufacturer's manual.
Technical. Intrinsic-safety approvals are listed as the manufacturer prints them (UL or CSA Class I Division 1 Groups A–D, ATEX and IECEx Ex ia IIC T4 marks). Sensor ranges are quoted per gas (for example 0–100% LEL, 0–30% volume O2, 0–100 ppm H2S, 0–500 ppm CO; PID sensors for VOCs in ppm or ppb with the lamp energy in eV; IR sensors for CO2 or methane). Calibration gas is matched to the monitor's sensors and listed by concentration. Draeger detector tubes have their own finder page.
Ratings and specifications on this page are shown as published by the manufacturer or the named standard and describe performance in that standard's test. They are not a recommendation for any task. The employer's hazard assessment decides what protective equipment a job needs. Verify details against the manufacturer's current documentation before you buy.
The standard at a glance
Copied from the named standard or regulation and shown with its source; nothing in these tables is Bayshore's recommendation.
OSHA confined-space atmosphere limits
| Condition (29 CFR 1910.146) | Limit |
|---|---|
| Oxygen deficient | Below 19.5% oxygen |
| Oxygen enriched | Above 23.5% oxygen |
| Flammable | Above 10% of the lower flammable limit (LFL) |
| Toxic | Above the substance's permissible exposure limit (29 CFR 1910 Subpart Z) |
| Approval mark (as printed by the manufacturer) | Meaning |
|---|---|
| UL or CSA Class I, Division 1, Groups A–D | Intrinsically safe for flammable gas and vapour atmospheres (North America) |
| ATEX / IECEx Ex ia IIC T4 | Intrinsically safe, gas group IIC, temperature class T4 (Europe / international) |
Source: OSHA 29 CFR 1910.146 (permit-required confined spaces). Alarm set points and calibration intervals follow each manufacturer's manual. Draeger detector tubes have their own finder.