20pcs LM393 Sound Detection Sensor Module For Arduino Para 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 detect When there is sound,outputs low level and the signal light Circuit board output switch quantity The output effective signal is low level Single channel signal output Signal output indication Main chip: LM393, Electret condenser microphone Working voltage: DC 4-6V Size: 32mm x 17mm x15mm (length*width*height) Package includes: 20 x Sound Sensor Module