Sonar Module HC-SR04 Distance Sensor used in robotics, quadcopters, multirotors Tricopters and many other maker projects Technical Voltage: DC5 V Quiescent Current: Level Output: The output of the high-5 V: Level: The End Of 0 V Induction angle: Not more than 15 degrees Detection range: 2 cm-450 cm High precision: Up to 0.3 cm