CO-03 Personal Single Gas Monitor

The Riken Keiki CO-03 personal single gas monitor is developed to protect users against carbon monoxide (CO) gas types. The CO-03 has a gas- and trouble alarm detection, with a detection range of 0-500ppm (1ppm). Both will be displayed throughout flashing light, buzzer and vibration.


CategoryPortable gas detector
TypeSingle gas
Target gasCarbon monoxide
Detection principleElectrochemical
Detection range0-500 ppm (1 ppm)
Sampling methodDiffusion
Type of alarmGas alarm, Trouble alarm
Display of alarmFlashing light, buzzer, vibration
Explosion proofIntrinsically safe
Ingress proof ratingIP 67
ApprovalsATEX, IECEx, CE
Power source

Alkaline battery 2-AAA size

Optional: Ni-MH battery pack

Continuous operation

Alkaline battery: Approx. 3000 hours 

Ni-MH battery: Approx. 2000 hours

Dimensions & Weight57(W) x 70(H) x 26(D) mm Approx. 80g
Operating temperature & Humidity-20 to 50℃, 0 to 95%RH


Sebastian Kelderman