The MSA ALTAIR io 4 is a wearable multi-gas detector with built-in LTE-M cellular connectivity, so no gateways, Wi-Fi or IT setup are needed. As soon as it's powered on, it connects to MSA Grid, MSA's cloud-based safety software. Supervisors get live visibility of gas readings, alarms and worker location across every site, and bump test and calibration records are logged automatically for compliance reporting.
This configuration monitors combustible gas (0–100% LEL), oxygen, carbon monoxide and hydrogen sulfide using MSA's long-life XCell sensors. It's built to survive a 25-foot drop onto concrete, it's IP68 dust- and waterproof, and it's approved for Class I, Division 1 hazardous locations. That makes it well suited to confined space entry, turnarounds, plant maintenance and emergency response.
The Starter Purchase SKU is an outright purchase that includes the detector and an NA/EU/UK charger. An MSA Grid account is required for device setup and data access. The ALTAIR io Dock (sold separately) adds automated bump testing and calibration.
| Dimensions | : | 4.6 x 3.1 x 1.5 in |
| Operating Temperature | : | -20°C to +55°C |
| Resolution | : | LEL 1%; O2 0.1% vol; CO 1 ppm; H2S 1 ppm |
| Series | : | Io4 |
| Type | : | Multi-Gas Detector |
| Gas Type | : | LEL (combustible), O2, CO, H2S |
| Detection Range | : | LEL 0–100%; O2 0–30% vol; CO 0–1,999 ppm; H2S 0–199 ppm |
| Battery Type | : | 2 Ah rechargeable lithium-ion |