Ultrasonic Sensor HC-SR04

The Ultrasonic Ranging Module HC-SR04 is a distance measuring sensor that can measure with the accuracy range from 2 cm to 400 cm. Its ranging accuracy can be up to 3mm. It has stable performance with high density SMD board. It travels until the wave gets reflected to an object through which we can know the distance. It can be used for Security system, Object distance measurement and many more.