This is a solar-powered open source kit for monitoring air quality, sound level, humidity, and temperature, made by Md. Khairul Alam. And it was selected as one of the “10 Projects of Merits” (winning a Seeed Environment Kit) during Seeed for Earth 2018 online contest with www.hackster.io.
Learn more about this project here: <LINK_TEXT text=“https://project.seeedstudio.com/taifur/ … kit-b1d03d”>https://project.seeedstudio.com/taifur/solar-powered-environmental-monitoring-kit-b1d03d</LINK_TEXT>
