GW-3(CO)

  • Among world’s smallest and lightest
  • One-year sensor warranty
  • Newly developed R sensor installed for improved performance.

Sampling method Diffusion type
Principle of detection Potentiostatic Electrolysis Method
Detection range 0 to 500 ppm
Alarm setpoints 1st 25 ppm 2nd 50 ppm 3rd 1200 ppm TWA 25 ppm  STEL 200 ppm OVER 2000ppm
Type of alarm Gas alarm / fault alarm
Display of alarm Flashing lamp / buzzer / flashing gas concentration readout / vibration
Explosion protected construction Intrinsic safety
Explosion-proof class IECEx : Ex ia ⅡC T4 Ga
ATEX : Ⅱ1G Ex ia ⅡC T4 Ga
Ingress proof rating IP66/68(2m, 1h)
Approvals Japan Ex, ATEX, IECEx, Brazil Ex
CE marking EMC / ATEX / RoHS
Power source CR2450 coin type lithium ion battery
Continuous operation Approx. 4000 hours
Dimensions Approx. 63(W)×42(H)×22(D) mm (excluding projections)
Weight Approx. 45g
Operating temperature range -20 to +60℃ (no sudden changes)
Operating humidity range 0 to 95%RH (no condensation)
Target gas CO
Target Gas

CO (Carbon Monoxide)

Product Type

Portable