This high sensitivity sound detection module detects sounds between 48 and 66 dB and has an analog as well as a digital output. The AO or analog output creates a real-time output voltage signal of the microphone, whereas the DO or digital output depends on the sound intensity and the threshold that has been set.
Specifications:

1. voltage: 3.3 to 5 VDC
2. outputs: one analogue + one digital output
3. fixation: 1 mounting screw hole 3 mm / 1.3"
4. 2 indicator LEDs: 1 power indicator + 1 comparator output indicator
5. frequency response: 50 Hz - 20 KHz
6. impedance: 2.2 K Ohm
7. sensitivity: 48 - 66 dB
8. operating temperature: -40 to +85°C / -40 to 185° F
9. dimensions: 44 x 15 x 10 mm / 1.73 x 0.59 x 0.39"
10. weight: 4 g / 0.14 oz

vma309_a4v02.pdf

vma309_scheme.pdf

ce_rohs_open.pdf