Carbon Monoxide Monitor

Listing ID #4855694

Features of  Carbon Monoxide Monitor
• Alternately shows Carbon Monoxide (CO) focus, Air Temperature, and Relative Humidity readings (cycles roughly at regular intervals) 
• Visible brilliant tri-shaded LED marker: Green 30ppm 
• LCD shows caution symbol, LED light turns red, and uproarious capable of being heard beeper sounds when indoor CO level surpasses set point (defaults at 30ppm — flexible); beeper can be briefly killed for false alert 
• Adjustable capable of being heard alert sounds when perusing surpasses one of the chose ranges: 25ppm, 30ppm, 35ppm, 50ppm, 100ppm or 200ppm 
• "ZERO" Re-Calibration work