Operating Voltage: AC / DC 12V Output Capacity: 10A Output Type: Relay Output Control Type: Fully Automatic Size: 2.4 x 1.5 inches (6 x 3.8 cm) Installation: M3 screw hole Application: When the water level is higher than the above line, it will stop to add water automatically, need for manual management, fully automatic. Easy to install and operate. Widely used for water saving projects, water towers, water supply buckets, water reservoirs, reservoirs, and more. No package, simple packaging. Depending on your monitor, the color of the actual product may differ from the images. Thank you for your understanding. We do our best to describe our best to you, but if you are not sure about the actual product, we will prioritize you. Specifications may change without prior notice in order to change the package or improve product functionality.