Features: High precise SCD40/SCD41 CO2 sensors module delivers ±50/±40ppm accuracy with integrated temperature (±0.5°C) and humidity (±6RH) measurement, featuring I2C interfaces for seamless microcontroller integration. Double function design combines CO2, temperature, and humidity sensing in compact PCB housing with 2.4-5.5V wide voltages ranges and low power consumption for versatile applications. Ideal for environmental engineers, developers, and smart home enthusiasts requiring reliability air quality data in commercial HVAC systems, agricultural monitoring, or indoor climate control projects. Perfect for real time CO2 tracking in greenhouses, office ventilation optimization, and portable air quality detectors due to its miniature size and multidevice I2C connectivity. This environmental sensors module ensures year round monitoring reliability with battery friendly operate, making it essential for building automation systems and precise agriculture solution. Specifications: Component: PCB Size: Approx.21.6x13.4mm/0.85x0.52inch Supply voltages ranges: 2.4V~5.5V Communication Interfaces: I2C Option Type:SCD40,SCD41; SCD40 carbon dioxide detection ranges: 400~2000ppm SCD41 carbon dioxide detection ranges: 400~5000ppm SCD40 Accuracy: ±50ppm SCD41 Accuracy: ±40ppm Applicable scenario:Smart home,Agriculture,Industrial environment, Package Includes: 1pc Gas Sensors Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.