Test mode :Using IO trigger for high level signal.( Not less that 10us),The Module sends eight 40 kHz automatically and detect whether there is a pulse signal back. The detection zone: 0.78~196 in/ (2cm~500cm); High precision: up to 0.12 in/(0.3 cm) Effectual angle: less than 15° Power supply: 5V DC; Quiescent current: less than 2mA. Test distance = ((Duration of high level)*(Sonic :340m/s))/2 Package included: 8pcs HC-SR04+ 4pcs Mounting Bracket(support HC-SR04 only) Have long been engaged in the wholesale and retail business of electronic related products. Welcome letter to discuss wholesale business. The larger the amount, the better the discount. HC-SR04 Ultrasonic Sensor HC-SR04 Ultrasonic Sensor is a device that can measure the distance to an object by using sound waves.
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