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SCD42-D-R2 Datasheet(PDF) 1 Page - Sensirion AG Switzerland |
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SCD42-D-R2 Datasheet(HTML) 1 Page - Sensirion AG Switzerland |
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1 / 21 page  www.sensirion.com Version 1 – March 2022 1/21 ▪ Large supply voltage range: 2.4 – 5.5 V ▪ Accuracy: ± 75 ppm @ 400 ppm – 1’000 ppm ▪ Digital I2C interface ▪ Integrated temperature and humidity sensor SCD42 Breaking the size barrier in CO2 sensing Products Details SCD42-D-R2 Accuracy: ± 75 ppm @ 400 – 1’000 ppm Full product list on page 20 Functional Block Diagram Device Overview Product Summary The SCD42 is Sensirion’s next generation miniature CO2 sensor. This sensor builds on the photoacoustic sensing principle and Sensirion’s patented PAsens® and CMOSens® technology to offer high accuracy at an unmatched price and smallest form factor. SMD assembly allows cost- and space-effective integration of the sensor combined with maximal freedom of design. On-chip signal compensation is realized with the build-in SHT4x humidity and temperature sensor. CO2 is a key indicator for indoor air quality as high levels compromise humans’ cognitive performance and well- being. The SCD42 enables smart ventilation systems to regulate ventilation in the most energy-efficient and human-friendly way. Moreover, indoor air quality monitors and other connected devices based on the SCD42 can help maintaining low CO2 concentration for a healthy, productive environment. Features ▪ Photoacoustic sensor technology PASens® ▪ Smallest form factor: 10.1 x 10.1 x 6.5 mm3 ▪ Reflow solderable for cost effective assembly ▪ Large output range: 0 ppm – 40’000 ppm |
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