The DFRobot Non-contact Capacitive Liquid Level Sensor is designed for detecting liquid levels without direct contact, offering a highly accurate and reliable solution. It works with containers having an outer diameter (OD) greater than 11mm, making it suitable for various applications like liquid tanks, reservoirs, and industrial systems. The sensor utilizes capacitive technology to detect changes in the liquid's dielectric properties, ensuring precise readings without the risk of corrosion or wear. Compatible with Arduino, it’s perfect for DIY projects and automation tasks. The sensor is durable, easy to install, and offers stable performance across different liquid types and environmental conditions.