GW-3 (O2)

GW-3 (O2)


  • O2 – Single Gas Monitor
  • Diffusion type
  • Gas Alarm / Trouble Alarm
  • IP66 / 68
  • Approvals – IECEx / ATEX / Japan EX CE
  • Approx. 63 (W) x 42 (H) x 22 (D) mm
  • Approx. 45g


Gaswatch GW-3 Series | GW-3 (O2)

The GW-3 series is the smallest and most compact single-gas monitor from the Gaswatch series.

The newest lineup of the Model GW-3 series is lightweight, weighing just 45 grams. This allows you to wear the device on your wrist or arms for a hands-free method of gas monitoring for personal protection.

The GW-3 also incorporates durable new sensors with advanced functions with a three-year warranty* (one-year sensor warranty for GW-3 (O2)).


The GW-3 series can be used in:
  • Refineries
  • Petrochemical facilities
  • Sewage treatment plants
  • Fire departments
  • Chemical plants
  • Tunnels
  • Mines
  • Hazardous waste sites


To learn more about the Gaswatch GW-3 series, click here for our catalog