Features: The SCD40 Gas Sensors Module is advanced 2 in 1 solution that accurately detects CO2 level, temperature, and humidity, ensuring a healthier environment for family. Featurings high sensitivity and rapid responses times, this Sensors module provides readings with minimal power consumption, making it addition to household or business. for homeowners, office managers, and facility supervisors to monitors indoor air quality and create safe and comfortable space for occupants. for use in various setting such as homes, offices, schools, factories, and laboratories, the SCD40 Sensors help maintain air conditions by providing real time CO2 concentration data. With easy installation and precise environmental monitoring capabilities, the SCD40 Gas Sensors Module is device for anyone committed to maintaining excellent indoor air quality and promoting well being. Specifications: Materials: PCB Styles: Air Sensors, Air Sensors Module(optional) Package Includes: 1PC CO2 Sensors Module note: Please allow 0-1cm error due to manual measurement. make sure do not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!