Piezo Sensor Element 15 mm (Knock and Tone)
Prices updated: 12 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Future Electronics | Piezo Sensor Element 15 mm | 15 EGP | View in store |
Price history
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Lowest price recorded: 15 EGP
About this product
A 15 mm piezo element that works in both directions. It generates a voltage when knocked or vibrated, which makes it useful for detecting knocks on a door or table, and it produces a tone when a voltage is applied. It is commonly used in Arduino projects for knock sensing and simple sound output.
Specifications
- Type
- Piezo element
- Diameter
- 15 mm
- Function
- knock and vibration sensing, tone generation
- Typical use with Arduino
- knock sensor and tone output
Frequently asked questions
What is the price of Piezo Sensor Element 15 mm (Knock and Tone) in Egypt?
Piezo Sensor Element 15 mm (Knock and Tone) currently costs 15 EGP in Egypt.
Where can I buy Piezo Sensor Element 15 mm (Knock and Tone) in Egypt?
Piezo Sensor Element 15 mm (Knock and Tone) is available from Future Electronics. Compare the offers above to find the best price.
Can I use it as a buzzer with Arduino?
Yes. Drive it with the tone() function on a digital pin. Because a piezo element is capacitive, use a series resistor to limit the current and adjust the frequency in your sketch for the loudest output.
How do I detect a knock with it?
Connect the element to an analog input and place a high-value resistor across it to ground. Read the voltage spike with analogRead() and set a threshold in your code to trigger on a knock.
