Extech SD800 CO2/Humidity/Temperature Datalogger

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  • Measures CO2,Temperature and Humidity
  • Triple LCD screen to simultaneously display readings
  • Date/Time stamps reading on SD card in Excel format easily transferred to PC's

rrp £298.00

now £268.00 (Ex. VAT) £321.60 (Inc. VAT)

rrp £298.00


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"Measures, displays and stores CO2, Humidity and Temperature simultaneously"

  • Description

    Extech CO2/Humidity/Temperature Meter (SD800)

    This lightweight datalogger is capable of measuring, displaying and storing CO2, temperature and relative humidity readings simultaneously on its triple LCD display.

    Using its maintenance-free dual wavelength NDIR (non-dispersive infrared) CO2 sensor, the SD800 can measure up to 4,000ppm as well as temperature to 50°C and humidity from 10 to 90%RH.

    The SD800 datalogger stores its readings on an SD card in Excel format, meaning all your date/time stamped information can easily be transferred to a PC for your convenience.

    • Checks for Carbon Dioxide (CO2) concentration using its maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor
    • Triple LCD simultaneously displays CO2, Temperature and Relative Humidity
    • Measures CO2  (0 to 4,000ppm), Temperature (32 to 122°F / 0 to 50°C) and Humidity (10 to 90%RH)
    • Datalogger stores readings on an SD card in Excel® format for easy transfer to a PC
    • Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto
    • Includes 6 x AAA batteries, 2G SD memory card, universal AC adaptor, and mounting bracket
  • Specification


    • Range: 0 to 4,000ppm
    • Accuracy: ±40ppm (<1000ppm); ±5% rdg (>1000ppm)
    • Resolution: 1ppm


    • Range: 32 to 122°F (0 to 50°C)
    • Accuracy: ±1.8°F/0.8°C
    • Resolution: 0.1°F/°C


    • Range: 10 to 90%
    • Accuracy: ±4%RH
    • Resolution: 0.1%


    • Datalogging: 20M data using 2G SD memory card
    • Dimensions: 5.2 x 3.1 x 1.3" (132 x 80 x 32mm)
    • Weight: 9.9oz(282g)
  • Supplied Accessories

    • Extech SD800 CO2/Humidity/Temperature Datalogger
    • 6 x AAA battery
    • 1 x 2G SD memory card
    • Universal AC adapter
    • Mounting bracket
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