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DFRobot Gravity: I2C SCD41 Infrared CO2 Sensor (400 – 5000 ppm)

6,194.00

This Gravity: SCD41 CO2 sensor is based on the SCD41 miniature CO2 sensor from Sensirion. SCD41 builds on the photoacoustic NDIR sensing principle and Sensirion’s patented PAsens® and CMOSens® technology to offer high accuracy at an unmatched price and the smallest form factor.

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SCD41 sensor detects the amount of energy that is absorbed by CO2 molecules. When pulsing the infrared emitter, CO2 molecules absorb infrared light periodically. This causes additional molecular vibration resulting in a pressure wave inside the measurement chamber. The higher the CO2 concentration, the more light is absorbed, and thus the greater the amplitude of this acoustic wave becomes.
Applications
Indoor CO2 concentration monitoring
Ambient monitoring in the greenhouse
Smart ventilation systems
Features
CO2, temperature, and humidity, three in one
The small size of 32*27*8mm
Low power, average current<4mA
Specification

Power Supply 3.3V to 5V
Average Operating Current <4mA
I2C Address 0x62
Product Size 32*27*8mm/1.26×1.06×0.31″
Accuracy ±(40 ppm + 5% MV)
Measuring Range 400 – 5000 ppm
Response Time(co2) 60s
Typical Relative Humidity Accuracy 6%RH
Relative Humidity Measuring Range 0 to 95%RH
Response Time(Humidity) 120s
Typical Temperature Accuracy 0.8℃
Temperature Measuring Range -10 to 60℃
Response Time(Temperature) 120s

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