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Reed R9450 Carbon Monoxide Monitor


The Reed R9450 Carbon Monoxide Monitor is capable of detecting concentrations up to 999ppm. The R9450 features a LCD display, built-in clock and calendar, max hold function and user adjustable alarm limit.

  • Measures carbon monoxide (CO), air temperature and relative humidity
  • User adjustable alarm limit
  • Built-in clock and calendar
  • Max hold function
  • Can be mounted on a wall or placed on desktop
  • Manual CO calibration to zero
  • Low battery indicator
  • Includes batteries 4 x AAA batteries (optional AC adapter)
Part Number: R9450
Attribute nameAttribute value


CO Range :0 to 999 ppm
CO Resolution :1 ppm
CO Accuracy :±5% of Reading or ±10 ppm
Temperature Range :0 to 50°C (32 to 122°F)
Temperature Resolution :0.1°C (0.1°F)
Temperature Accuracy :0.6°C (±1.2°F)
Humidity Range :10 to 90% RH
Humidity Resolution :0.1% RH
Humidity Accuracy :±3% RH @ 25°C; Otherwise ±5%
Dimensions :113 x 108 x 28 mm (4.4" x 4.3" x 1.1")
Weight :159 g (5.6 oz)