diyinnovation

 The module is only able to detect the presence of sound and not its loudness.

Sound level threshold is set by the on board sensitivity variable resistor . When

sound level is exceeded, it will flash an on board Led as well as providing a low

output to activate any external circuit.

Operating Voltage:  3.3V to 5V

Digital Output:  high or low (normally at high, when set sound level is exceeded output goes low)

Board size:  32 x 17mm

Connections:

Vcc   =  5V battery positive terminal

GND = connect to battery negative terminal

Out  = output to external circuit

Price: $1.50