Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Interface Type	3-Pin and 4-Pin Compatible
Operating Voltage	3.3V - 5V DC
Detection Range	Approx. 0 - 60 dB
Output Signal	Analog Voltage Output
Microphone Type	Electret Condenser
Sensitivity Adjustment	Potentiometer Included
Board Dimensions	32mm x 17mm
Mounting Holes	3mm Diameter
Compatible Platforms	Arduino, Raspberry Pi, ESP32
Application	Noise Monitoring, Sound Activation

6 reviews

Anonymous

Mar 27, 2026

Rating: 4/5

Solid performer

Works well for basic decibel estimation. Note that it is not a calibrated industrial meter, but for hobbyist automation, it is more than sufficient.

Anonymous

Mar 25, 2026

Rating: 5/5

Reliable noise detection

I used this to trigger an LED strip when noise levels exceed a certain threshold. The response time is fast, and the 3-pin/4-pin flexibility is very convenient.

Anonymous

Mar 13, 2026

Rating: 5/5

Perfect for my Arduino project

This sensor works exactly as described. The analog output is stable, and the potentiometer makes it easy to adjust sensitivity for different environments. Great value for the price.

Anonymous

Mar 10, 2026

Rating: 5/5

Bulk buy success

Purchased ten units for our makerspace. All of them functioned perfectly out of the box. The build quality is consistent across all modules.

Anonymous

Mar 05, 2026

Rating: 5/5

Great for learning electronics

Bought this for a university project on environmental monitoring. It integrates seamlessly with standard microcontrollers and provides consistent readings.

Anonymous

Mar 05, 2026

Rating: 4/5

Good quality, clear instructions needed

The hardware quality is solid and responds well to sound changes. I wish it came with a printed pinout diagram, but I found the info online easily. Works great with my ESP8266.

5 FAQ

Q: Can this measure exact decibels like a professional sound level meter?

A: No, this is a hobbyist sensor designed to detect relative sound intensity changes. It is not calibrated for precise scientific decibel measurements.

Q: Does this module provide a digital output or only analog?

A: This specific model provides an analog voltage output corresponding to sound intensity. Some variants include a digital DO pin, but please check the specific product images for confirmation.

Q: Is the microphone replaceable if it gets damaged?

A: Yes, the electret microphone is soldered onto the board and can be replaced by someone with basic soldering skills if necessary.

Q: Does this work with 3.3V logic boards like the ESP32?

A: Absolutely. The module operates comfortably within the 3.3V to 5V range, making it fully compatible with ESP32, ESP8266, and 3.3V Arduinos.

Q: What is the maximum voltage I can supply without damaging the board?

A: The recommended operating voltage is between 3.3V and 5V. Supplying voltage higher than 5V may damage the onboard components.

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