Features:
100% Brand New.
Size:32mm*17mm*8mm(length*width*height)
Main chip:LM393, Electret condenser microphone
Working voltage: DC 4-6V
Signal output indication
Can be used for Acoustic control light , give sound and light alarm working with Photosensitive sensor ,and sound control, sound detect
Single channel signal output
The output effective signal is low level
When there is sound, outputs low level and the signal light
Circuit board output switch quantity
Note: The Maximum induction distance is 0.5