Extech CO2/ Humidity/ Temperature Datalogger
Features
- Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or auto
- Maintenance free dual wavelength NDIR CO2 sensor
- Records data on an SD card in Excel ® format
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Extech CO2/Humidity/Temperature Datalogger features a maintenance-free dual-wavelength non-dispersive infrared CO2 sensor that checks for carbon dioxide concentrations. The triple LCD simultaneously displays CO2, temperature, and relative humidity. The datalogger date/time stamps and stores readings on an SD card for easy transfer to a PC. Selectable data sampling rates range from 5, 10, 30, 60, 120, 300, and 600 seconds or auto.
Applications
Applications include monitoring air quality in schools, office buildings, greenhouses, hospitals, or anywhere where high levels of carbon dioxide are generated.
- CO2 range: 0 to 4,000ppm
- CO2 accuracy: ±40ppm (<1000ppm); ±5% rdg (>1000ppm)
- CO2 resolution: 1ppm
- Temperature: 32 to 122°F (0 to 50°C)
- Temperature accuracy: ±1.8°F/0.8°C
- Temperature resolution: 0.1°F/°C
- Humidity range: 10 to 90%
- Humidity accuracy: ±4%RH
- Humidity 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)
- (1) Datalogger
- (6) AAA batteries
- (1) 2G SD card
- (1) Universal AC adaptor
- (1) Mounting bracket
In The News
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In order to know how close we are to reaching the carbon budget, an extensive knowledge of types of carbon input and their magnitudes, as well as their fluctuations over time, is needed.
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 Information gathered plays into the debate on the measurable effects of climate change. 
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California Polytechnic State University, San Luis Obispo (Cal Poly, SLO), has been monitoring Morro Bay for decades, and while the monitoring program has changed over the years, the dedication to monitoring the bay has remained the same. 
 
The project started in 2006 as a Packard Foundation-funded initiative to monitor water quality flowing in and out of Morro Bay. The goal at the time was to use the data collected to develop and inform an ecosystem-based management plan in collaboration with the Morro Bay National Estuary Program (MBNEP). 
 
Since the estuary was the focus at the time, researchers were monitoring water flowing into the estuary from Chorro Creek and Los Osos Creek.
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