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The Extech CO2 Humidity Temp Datalogger is an advanced air quality monitoring tool designed to keep you informed on critical indoor environment parameters. With its sleek design, portability, and long battery life, the SD800 makes it easy to collect data in schools, office buildings, hospitals or wherever CO2 levels may be high. Its nondispersive infrared CO2 sensor delivers accurate and reliable readings, while its triple LCD display provides clear readouts on CO2, temperature, and relative humidity. The datalogger offers various sampling rates and stores data on an SD card in Excel format for easy analysis. Monitor your air quality with the Extech CO2 Humidity Temp Datalogger and make informed decisions to ensure a healthier indoor environment.