Comes with controlled potential electrolysis sensor.

Carbon monoxide detector employs a highly sensitive controlled potential electrolysis method used for electrochemical analysis. It is able to accurately detect even the faintest amount of carbon monoxide.

Slim / Compact and lightweight, only 110g
Simple auto zero calibration procedure
Explosion proof
Low power consumption

Measurement range	0 – 300ppm (enhanced range: 301 – 999ppm)
Measurement method	Controlled potential electrolysis method
Sampling method	Diffusion
Indicating accuracy	+/- 10% of full scale at time of calibration
Display	Digital LCD
Explosion proof	Certified by Japan Ministry of Health, Labour and Welfare (Class Ex ia ⅡC T3 Ga / Certification No.TC22880)
Operating Temperature / Humidity range	Temperature : -10 – 40 ℃ Relative humidity : 30 – 90 %RH
Power source	One AAA alkaline battery provides about 3500 hours of operation (when no alarm signal is emitted)
Dimensions	48(W) x 37(D) x 105(H) mm
Weight	110g

Carbon Monoxide detector

Carbon monoxide detectorCM-9A

Carbon monoxide detectorCM-7B

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Measurement range	0 – 300 ppm (enhanced range : 301 – 1999 ppm)
Measurement method	Controlled potential electrolysis method
Sampling method	Diffusion
Indicating accuracy	+/- 5% of full scale at time of calibration
Operating Temperature / Humidity range	Temperature : -10 – 40 ℃ Relative humidity : 30 – 90 %RH
Weight	60g(including batteries)
Dimensions	77(W) x 21(D) x 42(H) mm(Excluding protrusions)