HC-SR04 Ultrasonic Sensor Distance Module: using IO trigger for at least 10us high level signal
The hc-sr04 arduino ultrasonic sensor can send eight 40 kHz and detect whether there is any pulse signal back.If it back, a high level signal will be outputed by IO, and the duration of the signal is the time from sending ultrasonic to returning
Hc-sr04 Test Distance : high level time velocity of sound (340M/S) /2
Hc-sr04 Power Supply : 5V DC; Quiescent Current : Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 4 inch
Height : 0.5 inch
Length : 5.75 inch

Item Weight: 0.32 ounce (View shipping rates and policies)
Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B01MA4O5G5