Features:

100% Brand new and high quality

For sound detection module has two outputs:

1. AO, analog output, real-time output voltage signal of the microphone

2. DO, when the sound intensity reaches a certain threshold, the output high and low signal

Module features:

1. There is a mounting screw hole 3mm

2. The use 5v DC power supply

3. With analog output

4. There are threshold level output flip

5. High sensitive microphone and high sensitivity.

6. A power indicator light

7. The comparator output is light