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Introducing Altair IO4 Gas Detection Technology

Support worker safety and connectivity with the ALTAIR io 4 portable gas detectors!

The ALTAIR io 4 stands out as a robust, intelligent gas detector, combining top-notch security with effortless connectivity straight out of the box. Its ultra-durable design houses the industry-leading XCell sensor platform, renowned for its longevity and resilience. Crafted with meticulous attention, the ALTAIR io 4 seamlessly integrates with the MSA Grid and the ALTAIR io Dock, streamlining compliance tasks, simplifying fleet oversight, and offering unprecedented insights into worker safety.

ALTAIR io 4 Features:
  • Available through MSA+, our comprehensive subscription program including hardware and software, gives you access to powerful cloud-based solutions enabling faster implementation, increased warranty coverage and automatic software and firmware upgrades – with minimal capital expense
  • Designed with fully integrated connectivity for real-time visibility across your worksites from Day One
  • CAT-M LTE cellular connectivity and integration with the MSA Grid
  • Deploys in seconds, right out of the box. No IT required
  • Rugged, durable design and Industry-Leading XCell® Sensors
  • Survives a 25-foot drop test. Breakthrough sensor design enables faster response and shorter span calibrations
  • 1 to 4 gas options available. Sensor Options: Combustible (LEL), Oxygen, Carbon Monoxide, Hydrogen Sulfide, Methane, Sulfur Dioxide, Nitrogen Dioxide, H2S Low-Concentration, CO, Hydrogen-Resistant SO2



Battery & Charging:

  • Battery: 2 Ah Rechargeable
  • Charge Time: Typical full charge is 4.5 hours at room temperature
  • Charging Temperature Range: 0°C-40°C
  • Battery Life: LTE-M: 17 hours typical (LTE-M)*, 2G: 16 hours typical
  • Actual battery run-time will vary depending on factors including cellular coverage, GPS coverage, ambient temperature, usage, active alerts, acknowledgment delay of alerts, location changes, RFID reading, gas readings, device navigation, battery age, and battery 


  • Exceeds 26 drops from 4 feet (1.2 m) (MIL-STD-810G 516.6 Transit Drop)
  • Capable of surviving an incidental 25 foot (7.5 m) drop onto concrete
  • Survives 60 minutes in NFPA 1982-2018 tumble tester
  • Dust and waterproof IP68 rating (2 m for 1 hour)

Location Awareness:

  • GNSS: Concurrent GNSS (GPS and GLONASS)
  • GPS Update Frequency: 30 seconds*
  • Location is updated every 30 seconds when a position is acquired. When no position is acquired, the device searches for a location every five minutes to conserve battery life of the device.
  • GPS Accuracy: 2.5 meters*
  • GPS accuracy will be influenced by surroundings, infrastructure, & environmental conditions


  • RFID Reader: Used by MSA id Tags for digital device assignment & DOCK communication
  • Cellular: LTE-M / 2G Fallback
  • Cellular Carriers: AT&T Global Partner Network, Verizon (USA Only)
  • Bluetooth: v4.1 Bluetooth Low-Energy (BLE)