Features: This Rainwater Level Sensors Module is design for Mega2560, operating within voltages ranges of DC3V to 5V, making it perfect for direct connection to power pin. Featuring exposed parallel wire traces, this sensors accurately measure water droplet or volumes, converting it into analogs signal for efficient water level alerts. Ideal for enthusiasts and DIY hobbyists, this module is for anyone interested in integrating technology into their projects. Perfect for rainwater monitoring and water level control, it supports automateds irrigation systems and manages pool or tank level effectively. Its compactly and durability design, crafted from waterproof material, ensures reliable performances in various environment, both indoors and outdoors. Specifications: Component:Plastic Size:Approx.8.5x8.5x13.1cm/3.3x5.2x3.3inch for Mega2560 Working Voltages: Dc3-5v Working Current: Less Than 20ma Sensors Type: Analogs Detection Area: 40x16mm Working Temperature: 10℃-30℃ Working Humidity: 10% -90% Without Condensation Package Includes: 4pcs Water Level Sensors Module note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.