Audio Sensors

 40Khz Ultrasonic Transducer Pair     Description:Pair of Ultrasonic compact Transmitter & Receiver sensor which can be used to build object sensor, distance sensor, motion sensor etc with high-performance characteristics. Standard operating frequency (40Khz) and good sensitivity. Ideal for robot applications, alarm sensors, range meansurement etc. Specification ..

Electrate -Condenser MicrophoneSPECIFICATIONSDirectivity: Ommi DirectionalSensitivity         -54 ± 3DB L: -57 ± 3DB         -62 ± 3DB N: -64 ± 3DB         (OdB = 1V/ µbar at 1KHz RL:2.2Kohm)Impedance: 1K ohm ± 30%Frequency Range: 20 Hz to 10000 HzOperation Voltage: 1.5V - 12V DC.Current: 0.8 mA (Max.)S/N Ration: 40 ..

The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. It offers excellent range accuracy and stable readings in an easy-to-use package. It operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect).Ultrasonic Ranging Module HC-SR04 provides..

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