Support worker safety and connectivity with the ALTAIR io 4 portable gas detector.

The ALTAIR io4 is a secure, smart gas detector with out-of-the-box connectivity packed into an ultra-rugged design - featuring our XCell sensor platform which continues to lead the industry in lifetime & durability. The ALTAIR io 4 was designed from the ground-up to work seamlessly with the MSA Grid and the ALTAIR io Dock, providing hassle-free compliance, effortless fleet management & incredible visibility into your worker safety.

Benefits of integrated connectivity to cloud-based analytics platform:

  • Predictively eliminate risks and guarantee compliance
  • Safety in real-time to improve alarm/incidents response time and reduce false alarms
  • Make Fleet Management easy - full visibility of asset health and location
  • Easy access to reports all in one place
  • Make maintenance easy - smart system will tell you when its needed
  • Become a proactive safety organisation using innovation and technology
  • 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: 2 Ah Rechargeable
  • Charge Time: Typical full charge is 4.5 hours at room temperature
  • 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)


  • 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)
MSA, gas detection, multi-gas, multi-gas detector

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