Portable Gas Detectors

Carbon Monoxide Detector XP-333IIA


For measurement of carbon monoxide concentration in the combustion exhaust gas due to incomplete combustion of gas equipment.


  • Detection range is 0 to 0.499vol% for CO
  • Compact and light weight
  • Detect at 3 patterns: Actual, Mean and Peak value
  • High sensitivity and selectivity sensor for CO3 different audible and visual alrm levels
  • 3 x AA alkaline batteries
  • Auto-Zero Adjustment
  • Including soft case


Model XP-333IIA
Detection Principle Electrochemical cell
Sampling Method Extractive
Measuring Range 0 to 0.499 vol%

Indication Accuracry

-10 to 0 °C 0 to +40 °C
0.000 to 0.014 vol% ±0.003vol%±1digit ±0.002vol%±1digit
0.015 to 0.250 vol% ±20vol%±1digit ±10vol%±1digit
0.251 to 0.499 vol% ±40vol%±1digit ±20vol%±1digit
Response Time <14 sec. (T90 excluding sampling hose)
Operating Temperature -10 to +40 °C
Power Source 3 x AA alkaline batteries
Battery Life Time Approx. 100 hrs.
Dimensions W60 x H155 x D40 mm
Weight Approx. 270g (excluding batteries)

Selectable Gases

carbon monoxide【CO】

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