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Extech CO50
Carbon Monoxide Meter, Discontinued

  • 10,000ppm cross filtered CO sensor
  • 0 to 999 ppm LCD display for low end monitoring
  • Backlit display automatically switches on in poorly lit conditions
  • Audible indicator rises in tone up to 30ppm
  • Two-tone alarm indicator above 30ppm
  • One button operation with auto zero on start up
  • Self check audible alarm
  • Less than 5 second response time
  • 50 hour battery life
  • 15 minute ambient room test with peak value logging
  • Battery status indicator on digital display


  • Ambient air safety checks on residential appliances
  • HVAC service on furnaces, hot wire heaters and gas burners
  • Home inspections
  • Industrial environments where the accumulation of CO is possible
Click for larger image of the Extech CO50 Desktop CO (Carbon Monoxide) MonitorClick for larger image
Extech CO50 Shown
Product Information
Datasheet 45 KB
Manual 118 KB
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Ordering Information
Model Description Buy Online Price
CO50 Extech CO50 Desktop CO (Carbon Monoxide) Monitor Discontinued

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.