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 40Khz Ultrasonic Transducer Pair     Description:Pair of Ultrasonic compact Tra.....

Electrate -Condenser MicrophoneSPECIFICATIONSDirectivity: Ommi DirectionalSensitivity   .....

The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphi.....

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