HW-508 Active Buzzer Module 3-Pin Alarm Sound Module
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Microohm | HW-508 Active Buzzer Module 3-Pin Alarm Sound Module | 25 EGP40 | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 25 EGP
About this product
The HW-508 is a compact 3-pin active buzzer module with a built-in oscillator, so it produces an alert tone when powered without an external frequency signal. It is used in alarms, warning systems, smart devices and Arduino projects. A passive buzzer is the better choice if you need to control the tone frequency.
Specifications
- Buzzer type
- Active (built-in oscillator)
- Number of pins
- 3
- Model
- HW-508
- Application
- Alarms, alerts, Arduino projects
Frequently asked questions
What is the price of HW-508 Active Buzzer Module 3-Pin Alarm Sound Module in Egypt?
HW-508 Active Buzzer Module 3-Pin Alarm Sound Module currently costs 25 EGP in Egypt.
Where can I buy HW-508 Active Buzzer Module 3-Pin Alarm Sound Module in Egypt?
HW-508 Active Buzzer Module 3-Pin Alarm Sound Module is available from Microohm. Compare the offers above to find the best price.
How do I connect it to an Arduino?
Connect the power pins to 5V and GND, and the signal pin to a digital pin. Test whether the module sounds on HIGH or LOW with digitalWrite, since module wiring and logic vary between boards.
Why does it sound without a tone signal?
An active buzzer contains its own oscillator, so it sounds at a fixed frequency once powered and controlled. A passive buzzer needs a PWM tone signal to make sound.
