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CO2, Humidity and Temperature Datalogger

Extech SD800

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SD800 monitors air quality in schools, office buildings, greenhouses, hospitals and anywhere that high levels of carbon dioxide are generated. Selectable data sampling rate of 5, 10, 30, 60, 120, 300, 600 seconds or automatic. Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor. Triple LCD simultaneously displays CO2, Temperature and Relative Humidity. Complete with six AAA batteries, 2G SD memory card, universal AC adaptor, and mounting bracket.

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General Specifications
Carbon Dioxide (CO?)
0 to 4,000ppm
Carbon Dioxide (CO?) Basic Accuracy
±40ppm ( <1000ppm); ±5% of reading (>1000ppm)
Carbon Dioxide (CO?) Max Resolution
20M data using 2G SD memory card
Relative Humidity
10 to 90%
Relative Humidity Basic Accuracy
Relative Humidity Max Resolution
Temperature (Air)
32 to 122°F (0 to 50°C)
Temperature (Air) Basic Accuracy
Temperature (Air) Max Resolution
Additional Details
5.2 × 3.1 × 1.3" (132 × 80 × 32mm)
6 × AAA (1.5V) batteries
2 years
9.9oz (282g)
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Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech SD800