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GW-3 (OX)

Portable Gas Detector for Oelectrochemical type


  • Among world's smallest and lightest
  • Three-year sensor warranty
  • Newly developed R sensor installed for improved performance

CategoryPortable Gas Detector
TypeSingle Gas
Detection gasO2
Principle of detectionElectrochemical type
Detection range0.0 to 25.0 %
(0.0 to 40.0 %)
Alarm setpointsL 18.0 % / LL 18.0 % / H 25.0 %
Response timewithin 30 seconds (Typical: 8 seconds)
Alarm typeGas alarms: Three-step alarms, STEL alarm, TWA alarm, OVER alarm
Fault alarms: Sensor connection/disconnection, low battery level, calibration failure, clock abnormality, system abnormality
Explosion protected constructionIntrinsically safe
Explosion-proof classATEX: II1G Ex ia IIC T4 Ga/IECEx: Ex ia IIC T4 Ga/INMETRO: Ex ia IIC T4 Ga/Japan Ex: Ex ia IIC T4 Ga
IP ratingEquivalent to IP66/68 (2 m, 1 h)
ApprovalsATEX, IECEx, INMETRO, Japan Ex, CE Marking
Power sourceCR2450 coin-type lithium battery
Battery lifeApprox. 2,000 hours
Dimensions63 mm (W) × 42 mm (H) × 22 mm (D) (excluding projections)
WeightApprox. 45g
Operating temperature range-20℃ to +60℃ (no sudden changes)(Approx. 15-minute temporry use environment: -40℃ to +60℃[no sudden changes])
Operating humidity range0 to 95 % RH (no condensation)*

Applications SafetyIndustrialMarineOil & Gas
Target Gas Oxigen - O2