πππππππππππ: The concentration of carbon dioxide (0.03% usually) is related to daily life. Recently, thereβs a study showing that the atmospheric CO2 content has reached 0.0385% (385 ppm) which is the highest value since 2.1 million years. The raise of atmospheric CO2 content to some extent results in global climate change. How to accurately measure carbon dioxide gas concentration is becoming a universal research topic.
DFRobot released its latest high-precision infrared Arduino CO2 sensor. The effectively measuring range is from 400 to 5000ppm. This sensor is based on non-dispersive infrared (NDIR) technology and has good selectivity and oxygen-free dependency. Besides, its service life could up to 5 years!
π πππππππ: Waterproof and anti-corrosion High sensitivity Low power consumption Excellent stability Temperature compensation Excellent linear output High cycle life Anti-water vapor interference No poisoning
ππππππ πππππ V1.2 (ANALOG): Detection Gas: Carbon Dioxide (CO2) Power Supply: 5.0Β±0.1V DC Average Current: 40mA@5V Peak Current: οΌ125@5V Output Signal: PWM Preheat: 1min Response Time: T90 οΌ 120s Working Temperature: -10βο½50β Working Humidity: 0ο½95%RH (non-condensing) Detection Range: 400ο½5000 ppm Resolution: 1ppm Accuracy: Β±(50ppm+5% rdg) Dimension: 69Γ37mm/2.72Γ1.46"