<p>➀ Greatech, a German company, has introduced the Sensoco Loomair Solar, a light-powered CO₂ sensor designed for smart buildings.</p><p>➁ The sensor uses indoor solar cells and e-peas' power management IC for energy conversion and continuous operation.</p><p>➂ It supports multiple communication protocols like Mioty, Wireless M-Bus, LoRa, and Sigfox, ensuring compatibility with various building management systems.</p>