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Description
DFRobot Gravity: I2C SCD41 Infrared CO2 Sensor
Utilizes patented Sensirion technology for accuracy
Compact design for easy installation
Features integrated temperature and humidity sensor
Measures CO2 levels from 400 - 5000 ppm
Operates on the principle of infrared light absorption
The DFRobot Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 Ppm) is a crucial component in maintaining indoor air quality, as elevated levels of CO2 can negatively impact human cognitive performance and overall well-being. This sensor is founded on the SCD41 miniature CO2 sensor from Sensirion, utilizing the photoacoustic NDIR sensing principle in conjunction with Sensirion’s patented PAsens and CMOSens technology. This combination ensures unparalleled accuracy and a compact form factor.
The sensor is equipped with an integrated temperature and humidity sensor, which facilitates on-chip signal compensation. Additionally, it provides temperature and humidity data outputs. The SCD41 sensor operates by detecting the energy absorbed by CO2 molecules. When the infrared emitter is pulsed, CO2 molecules periodically absorb infrared light, causing additional molecular vibration and resulting in a pressure wave within the measurement chamber.
The concentration of CO2 is directly proportional to the amount of light absorbed; the higher the CO2 concentration, the more light is absorbed, and the greater the amplitude of the acoustic wave. This wave is measured by a microphone within the gas chamber, allowing for the calculation of the CO2 concentration.
If you are not satisfied for whatever reason with a Product you bought on the Site, it is possible to return it for refund within 30 days from the date you received it unless otherwise indicated in the Product listing. You must first advise the Vendor associated with your order in your account to obtain a return authorization (‘’RA’’) number before returning a Product. (‘’RA’’) numbers are valid for 30 days, within which time the returned Products should be received by the Vendor. No returns will be accepted without having previously obtained an (‘’RA’’) number. The Product must then be returned in its original packaging (in perfect condition for resale) with its receipt and your (‘’RA’’) number. Reimbursement will be denied for any Products which do not conform to the above mentioned conditions.
Build-it-yourself Robot Parts are not refundable once assembled. Robots & Kits requiring assembly or soldering are also not refundable once assembled, soldered or modified in any way. All sales of robotic software and apps are final and cannot be refunded or exchanged. Returns are not accepted on special orders and clearance items except when they are found defective, in which case the Product may be repaired or replaced at the Vendor’s discretion. 20% Restocking fees may apply if you are returning a large quantity of the same Product that was ordered specifically for you from the manufacturer.
Please note that all items will be reimbursed within 7 to 14 days of receiving the Product (shipping fees excluded). You must also cover the cost of returning the Product. Shipping fees will only be refunded if the return is a result of a shipping error on our part. Cleaning fees of USD 100 may also be charged if a domestic robot is returned and has not been properly cleaned.