Features: This capacitive touch sensors module features a single channel output, wide 2.5V-5.5V voltages compatibility, and adjustable sensitivity through builts in potentiometer for precise control in electronic projects. Engineered with capacitive touch technology and antiinterferences design, the compactly base module ensures reliable operation while consuming minimal power during standby mode. Ideal for electronics enthusiasts, IoT developers, for Raspberry users creating interactive interfaces for automation systems or customs control panel. Perfectly integrates into intelligent home switches, industrial equipment dashboards, and DIY projects requiring durability, space saving touch input solution with environmental adaptability. The wearfree capacitive sensings mechanism eliminates mechanical switching degradation, delivering consistent performances for long terms applications in humid or electrically noise environment. Specifications: Component: Plastic Size: Approx.15x11mm/0.59x0.43inch Power:2.5v-5.5v Option Type:10pcs,20pcs; Purpose: widely used in various intelligent devices and electronic projects Package Includes: Package A 10pcs Touch switching Button Sensors Module Package B 20pcs Touch switching Button Sensors Module note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.