LM393-B - Sound Detection Sensor Module Sensor Smart car for Arduino

1.Dimensions: 32mm(L) X 17mm(W) X 15mm(D)

2.Main chip: LM393, electret microphone

3.Operating voltage: DC 3.3v-5v

4. Signal output indication
5. Single channel signal output
6. The output effective signal is low level
7. When there is sound, outputs low level and the signal light
8. Can be used for acoustic control light , give sound and light alarm working with photosensitive sensor, and sound control, sound detect.
9. Circuit board output switch quantity