Senseair Unveils Ultra-Compact SMD-Reflow-Solderable CO2 Sensor
https://www.electronics-lab.com/senseair-unveils-ultra-compact-smd-reflow-solderable-co2-sensor/
The next-generation S12 CO2 sensor is 75% smaller than its predecessors, features an SMD-solderable design, and utilizes NDIR sensor technology for indoor air quality applications in smart buildings.
Ruuvi Air Crams Seven Sensors into Open-Source IAQ Monitor
https://www.electronics-lab.com/ruuvi-air-crams-seven-sensors-into-open-source-iaq-monitor/
The all-in-one smart sensor provides real-time, comprehensive indoor air quality monitoring and Bluetooth Low Energy connectivity.