3pcs LM393 Sound Detection Sensor Module ForPara Som Condenser Transducer Sensor Vehicle Kit

Feature Can be used for Acoustic control light give sound and light alarm working with Photosensitive sensor and sound control sound detectWhen there is sound outputs low level and the signal lightCircuit board output switch quantityThe output effective signal is low levelSingle channel signal outputSignal output indicationMain chip LM393 Electret condenser microphoneWorking voltage DC 4 6VSize 32mm x 17mm x15mm length width height Package includes 3 x Sound Sensor Module