About this item

The DFRobot Gravity URM09 Analog Ultrasonic Sensor is a high-performance distance measurement module designed for precision and reliability in robotics, automation, and proximity detection applications. Using ultrasonic echo ranging technology, the sensor emits high-frequency sound waves and measures the time it takes for the echo to return, accurately calculating the distance to an object. What sets the URM09 apart is its analog output, which makes it extremely easy to integrate with most microcontrollers, including Arduino, ESP32, and Raspberry Pi. The sensor outputs a continuous voltage signal proportional to the measured distance, allowing smooth and real-time distance tracking. This analog signal eliminates the need for complex communication protocols, making it ideal for both beginners and advanced users. The URM09 supports detection ranges from 2 cm to 500 cm with high accuracy and stability. It’s well-suited for environments where real-time obstacle detection or fluid-level sensing is required. Encased in a durable housing and part of the Gravity series, it features a standard 3-pin interface, simplifying wiring and connection. Compact, responsive, and highly adaptable, the URM09 is perfect for smart robots, water level monitors, obstacle avoiders, and other embedded sensing systems.