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) Power Supply :+5V DC Quiescent Current : 3mA Working Current: < 5mA Effectual Angle: <15° Ranging Distance : 2cm - 450 cm Resolution : 0.3 cm Measuring Angle: 30 degree Note: The module should be inserted Fortunately, the circuit board re-energized, and avoid the high malfunction, if they have re-energized before they solve.
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