> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Large Enclosed Piezo Element w/Wires

**Type:** Product page · **SKU:** ADA1739 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/large-enclosed-piezo-element-w-wires.html ([markdown](https://core-electronics.com.au/large-enclosed-piezo-element-w-wires.html.md))

This large (30mm diameter) piezo element is nicely enclosed with mounting holes so you can attach easily. Piezo elements convert vibration to voltage or voltage...

## Pricing

- **Price:** $2.20 (inc GST) — $2.00 AUD, exc GST
- **Quantity discounts:** 10+ $1.94 (exc GST) · 50+ $1.90 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 6 today, and up to 500 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA1739:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA1739:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This large (30mm diameter) piezo element is nicely enclosed with mounting holes so you can attach it easily. Piezo elements convert vibration to voltage or voltage to vibration. That means you can use this as a buzzer for making beeps, tones and alerts AND you can use it as a sensor, to detect fast movements like knocks. You can also use it under a drum pad to make a drum/crash sensor

It's rated for up to 12Vpp use but you can also use 3 or 5V square waves and its plenty loud. For music use with an Arduino, check out the Tone tutorial. For sensing, the Knock tutorial is your guide! There are thin wires attached, Adafruit plugged them into a solderless breadboard, but they might too thin to plug in directly into the Arduino socket headers.

We've tested these and found they work great as a cheap speaker upgrade for V1 micro:bits that lack the built-in speaker.

## Technical Details

- Rated Voltage (Square Wave): 12Vp-p
- Operating Voltage: 1-30Vp-p
- Rated Current (MAX): 3.5mA
- Min. Sound Output at ten cm: 85db
- Resonant Frequency: 1300Hz ± 500 / 4000HZ ± 500
- Operating Temperature: -20°C ~ +60°C
 

Dimensions:

- Mounting Hole Width: 41mm / 1.6"
- Diameter: 30mm / 1.2"
- Center diameter: 5.7mm / 0.2"
- Weight: 4.3g
 

![](https://core-electronics.com.au/attachments/localcontent/largepiezodim_23316e3aaf2.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/7/1739-00.jpg)