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Sound Detection Sensor Module LM393 for Arduino (4-Pin, Red)

Sound Detection Sensor Module LM393 for Arduino (4-Pin, Red)

Part number: LM393Other Sensors

Lowest price now

35 EGP

2 offers · 2 stores

View in store: Makers Electronics

Prices updated: 12 Oct 2026

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Makers Electronics logoMakers ElectronicsCheapest35 EGPView in store
Microohm logoMicroohm35 EGP45View in store

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Lowest price recorded: 35 EGP

About this product

A sound detection module built around an LM393 comparator and an electret condenser microphone. It gives a digital output when a sound is detected, suiting clap switches, noise alarms and simple sound-triggered projects with Arduino. The single-channel output is active low, and an indicator LED shows the signal state.

Specifications

Main chip
LM393
Microphone
Electret condenser
Working voltage
DC 3.3V - 5V
Detection distance
0.5 m
Output
Single channel, digital, active low
Pins
4

Frequently asked questions

What is the price of Sound Detection Sensor Module LM393 for Arduino (4-Pin, Red) in Egypt?

Sound Detection Sensor Module LM393 for Arduino (4-Pin, Red) currently costs 35 EGP in Egypt.

Where can I buy Sound Detection Sensor Module LM393 for Arduino (4-Pin, Red) in Egypt?

Sound Detection Sensor Module LM393 for Arduino (4-Pin, Red) is available from Makers Electronics and Microohm. Compare the offers above to find the best price.

Can I connect it directly to an Arduino?

Yes. Power the module at 3.3V to 5V DC, connect GND and VCC, and wire the digital output to a digital input pin. The output goes low when sound is detected.

Does the output show how loud the sound is?

No. The output is a single digital signal, so it indicates whether sound was detected, not its volume level. For loudness measurement you would need an analog sound sensor.