3Pcs HC-SR04 Ultrasonic Wave Detector Ranging Module HCSR04 Distance Sensor for Arduino

Specifications 1 Voltage DC5V 2 Quiescent Current 2mA3 level output the output of the high 5V 4 level the end of 0V5 Induction Angle not more than 15 degrees6 detection range 2cm 450cm7 High precision up to 0 3cmiThe Module URF04 Works 1 IO trigger ranging to at least 10us high signal 2 module automatically sends eight 40kHz squre wave automatically detect whether a signal return 3 a signal to return to a high IO output high duration of the ultrasonic time from launch to return Test distance time high speed of sound 340M S 2 This product is simple to use and a Control Port high above a 10US you can wait for the high output at the receiving port An output can open the timer can be read when this port goes low timer value for the time ranging be calculated distance such a continuous cycle of measurement you move to measure the value we can achieve Package Include 3 Distance Sensor Module Board