ELEGOO Ultrasonic Sensor, HC SR04 Distance Sensor Kits for Arduino UNO MEGA R3 Raspberry Pi,Datasheet Available to Download

Plug-and-Play: Ultrasonic distance sensor module, 5V DC, compatible seamlessly with Arduino, Raspberry Pi, and other MCU boards for robotics and DIY projects. 40KHz Ultrasonic, High Precision: Transmitter sends 40KHz pulses, receiver detects echo. Distance calculated via sound travel time, output as TTL pulse width. Resolution: 0.3cm. Wide Range, Low Power: Measures 3cm–450cm (1.2in–177in), effective angle less than 15°. Quiescent current below 2mA, ideal for battery-powered and energy-saving applications. Compact Design: Small size, lightweight, non-contact distance measurement. Perfect for obstacle avoidance, object detection, and range finding in electronic projects. Extra Wires: Includes 5pcs ultrasonic sensors + 10pcs female-to-male Dupont cables. Well-packed for bulk projects, classroom labs, and makerspace inventory.