Ultrasonic Ranging Sensor HC-SR04

If you are sourcing a ultrasonic ranging module , the HC-SR04 is good choose . Its stable performance and high ranging accuracy make it a popular module in electronic market .Compared to the Shap IR ranging module , HC-SR04 is more inexpensive than it . But it has the same ranging accuracy and longer ranging distance. Specifications Power supply: 5V DC Quiescent current: <2mA Effectual angle: <15° Ranging distance: 2cm – 500 cm Resolution: 1 cm Ultrasonic Frequency: 40k Hz