• Can detect the intensity of the sound environment
• Sensitivity adjustable (shown in blue digital potentiometer control)
• With the retaining bolt hole, convenient installation
• Output form digital switch output (0 and 1 high and low level)
• Signal output indication
• Single channel signal output
• The output effective signal is low level
• When there is sound,outputs low level and the signal light
• Can be used for Acoustic control light , give sound and light alarm working with Photosensitive sensor ,and sound control,sound detect
• Circuit board output switch quantity
• Working voltage:DC 3.3-5V
• Small board PCB size: 3.4 x 1.6 cm

Note: This sensor only recognizes the availability of sound (vibration principle) can not identify the size of the sound or the specific frequencies of sound