1pcs Ultrasonic Module HC-SR04 3.5-5v,HC-SR04 Bracket

Origin:CN(Origin) Material:Porcelain Type:Sound Sensor Model Number:HC-SR04 Working voltage: DC5V Quiescent current: less than 2mA Level output: High 5V Level output: Bottom 0V Sensing angle: not more than 15 degrees Detection range: 2cm-450cm High precision: up to 0.3cm Board connection: VCC-trig (control side), echo (receiver), out (empty feet), GND using IO trigger ranging,to at least 10us of high-level signal; the module automatically sends eight 40khz square wave, automatically detect whether there is signal return; there is a signal return, through the IO output of a high, high duration is the time from the launch to the return of ultrasound.