MSA Altair io 4 LTE Enabled Gas Monitor
MSA ALTAIR io 4
Connected Gas
Detection Wearable
Out of the box and into the cloud. Cellular connectivity, GPS location awareness, and automatic bump and calibration through the ALTAIR io DOCK — with every device, event, and test record streamed to MSA Grid from day one.
Built for turnarounds, plant maintenance, emergency response, and confined space entry
The MSA ALTAIR io™ 4 is a connected multigas detection wearable designed with fully integrated cellular connectivity, so your worksite has real-time visibility from day one. It monitors LEL, O₂, CO, and H₂S using MSA XCell® sensor technology, streams device data straight to your MSA Grid account, and updates over the air — no docking station required for firmware or configuration changes. At Jendco Safety Supply, the io 4 is backed by a complete ecosystem including the ALTAIR io DOCK, gas cylinder holder, and 5-device smart charger to simplify calibration, compliance, and fleet management.
Designed with fully integrated connectivity for real-time visibility across your worksites from day one
The MSA ALTAIR io 4 is a connected gas detection wearable built for industrial worksites, turnarounds, and emergency response — combining LTE-M cellular connectivity, concurrent GNSS location awareness, and MSA's patented XCell® sensor technology in a package rated to survive the job.
- Automatic connectivity. Device data streams instantly and securely to the cloud, available anytime on MSA Grid.
- Over-the-air updates. One-click configuration and firmware changes pushed to the whole fleet.
- Automatic bump and calibration. Place the device on the ALTAIR io DOCK and the correct test starts on its own.
- MSA id™ digital device assignment. Built-in RFID reader ties every device to the right worker.
- Workproof durability. IP68, 26 drops from 4 ft (MIL-STD-810G), and survives an incidental 25 ft drop onto concrete.
- Always under warranty while covered by an active MSA+ subscription.
The complete ALTAIR io 4 workflow
Built to work as one system. The ALTAIR io 4 ecosystem simplifies gas detection programs with automated testing through the io DOCK, organized calibration gas management, and fleet-ready charging that digitally checks devices back in the moment they are returned.
ALTAIR io 4 Detector
Connected LEL, O₂, CO, and H₂S detection with LTE-M cellular, GPS, and RFID device assignment.
View Detector
ALTAIR io DOCK
Plug-and-play automated bump testing and calibration — no networking required, results straight to Grid.
View Dock
Gas Cylinder Holder
Keeps calibration gas secure and organized while supporting scalable, tidy multi-stand test banks.
View Holder
5-Device Smart Charger
Wall-mountable five-bay charging that marks each device as returned to the company on contact.
View ChargerCloud visibility for the field and the safety office
MSA Grid is cloud-based software that provides real-time visibility across your worksites — including workers and workflows — accessible from anywhere with an internet connection, on desktop or mobile.
Grid Compliance
Cellular connectivity, emergency live monitor, over-the-air software updates, MSA id digital device assignment, fleet cloud configuration, and cloud logs retained for the life of an active subscription.
Grid Fleet Manager
A fleet manager dashboard with streamlined device compliance, reporting, and ALTAIR io DOCK monitoring — so you know your calibration gas needs across the entire fleet.
Grid Live Monitor
Full event live monitoring, live and historical location monitoring, event management, location awareness, and mobile notifications. Know when, where, and who — in real time.
Build your safety program with the simplicity of a subscription
MSA+ gives you access to powerful cloud-based solutions enabling faster implementation, increased warranty coverage, and automatic software and firmware upgrades — with minimal capital expense.
Zero up-front capex
Skip the capital expenditure process and the up-front purchase of devices, and get your gas detection program approved and running quickly.
Always under warranty
While you are a subscriber you are covered under warranty regardless of the age of the device. Peace of mind and less hassle.
Better with time
Features and functionality are routinely released to improve your safety program — and you are not stuck with old devices. Upgrade to the latest generation with every subscription renewal.
ALTAIR io 4 at a glance
Published specifications from the MSA ALTAIR io™ 4 Gas Detection Wearable specification sheet (1708-056-MC). Specifications are subject to change without prior notice.

