Extech Instruments CO250, EA80, SD800 Catalog Page

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Indoor Air Quality Carbon Dioxide Meters/Dataloggers

CO250 Portable Indoor Air Quality CO2Meter

Measures Carbon Dioxide (CO2) , Temperature, Humidity, Dew Point, and Wet
Bulb and calculates statistical 8 hour and 15 minute time weighted averages

• Checks for Carbon Dioxide (CO2) concentrations, measures Temperature
and Relative Humidity, and displays calculated Dew Point and Wet Bulb

• Calculates statistical weighted averages of TWA (8 hour time weighted
average) and STEL (15 minute short term exposure limit)

• Maintenance free NDIR (non-dispersive infrared) CO

2

sensor

• Backlit triple LCD display and user programmable audible alarm

• RS-232 interface, software and cable included to analyze data on a PC

• Optional 33% and 75% RH calibration bottles (RH300-CAL)

SPECIFICATIONS RANGE RESOLUTION

Carbon Dioxide (CO2) 0 to 5,000ppm 1ppm
Temperature 14 to 140°F (-10 to 60°C) 0.1°F/°C
Humidity 0.0 to 99.9% 0.1%
Dimensions/ Weight 7.9x2.7x2.3” (200x70x57mm)/ 6.7 oz. (190g)

ORDERING

CO250 Portable Indoor Air Quality CO2Meter
RH300-CAL 33% and 75%RH Calibration Kit

EA80 Indoor Air Quality CO2 Meter/Datalogger

Measures CO2level, Temperature, Humidity, Dew Point and Wet Bulb

• Checks for Carbon Dioxide (CO2) concentrations, measures Temperature
and Relative Humidity, and displays calculated Dew Point and Wet Bulb

• Maintenance free dual wavelength NDIR (non-dispersive infrared) CO

2

sensor

• Continuous (20,000 sets) or manual (99 sets) datalogging

• Data hold, Max/Min with Time stamp, Alarm, and Auto Power Off

• Easy calibration in fresh air

SPECIFICATIONS RANGE RESOLUTION

Carbon Dioxide (CO2) 0 to 6,000ppm 1ppm
Temperature -4 to 140°F (-20 to 60°C) 0.1°F/°C
Humidity 10 to 95% 0.1%
Dimensions/ Weight 5.3 x 2.8 x 1.2" (135 x 72 x 31mm)/ 8.2oz (235g)

ORDERING

EA80 Indoor Air Quality CO2Meter/Datalogger

SD800 CO2/Humidity/Temperature Datalogger

Records data on an SD card in Excel®format to transfer to a PC for analysis

• Checks for Carbon Dioxide (CO2) concentrations

• Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2sensor

• Triple LCD simultaneously displays CO2, Temperature and Relative Humidity

• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto

SPECIFICATIONS RANGE MAX. RESOLUTION BASIC ACCURACY

Carbon Dioxide (CO2) 0 to 4,000ppm 1ppm ±40ppm (<1000ppm);

±5% rdg (>1000ppm)
Temperature 32 to 122°F (0 to 50°C) 0.1°F/°C ±1.8°F/0.8°C
Humidity 10 to 90% 0.1% ±4%RH
Datalogging Datalogs using 4GB SD memory card (included)
Dimensions/ Weight 5.2 x 3.1 x 1.3" (132 x 80 x 32mm)/ 9.9oz (282g)

ORDERING

SD800 CO2/Humidity/Temperature Datalogger

Measure CO2level in office
buildings to ensure proper
ventilation. Includes software
and cable, 4 AA batteries,
and case; 1 year warranty

Includes 6 AAA batteries,
RS-232 cable, and
Windows

®

compatible

software; 1 year warranty

Includes 6 AAA batteries,
SD memory card,
Universal AC adaptor,
and mounting bracket;
1 year warranty