Smraza 5pcs Ultrasonic Module HC-SR04 Distance Sensor with 2pcs Mounting Bracket for Arduino MEGA R3 Mega2560 Duemilanove Nano Robot XBee ZigBee S03
$11.59
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: 5pcs HC-SR04+ 2pcs Mounting Bracket(support HC-SR04 only) Tutorial Link https://mega.nz/#F!BlJz0T7B!dzXcwUN_xoUTOmhmVMA0sg
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