> **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

# Waterproof Metal Pushbutton with Red LED Ring - 16mm Red Momentary

**Type:** Product page · **SKU:** ADA559 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/waterproof-metal-pushbutton-with-red-led-ring-16mm-red-momentary.html ([markdown](https://core-electronics.com.au/waterproof-metal-pushbutton-with-red-led-ring-16mm-red-momentary.html.md))

These chrome-plated metal buttons are waterproof and feature an illuminated LED ring.

## Pricing

- **Price:** $9.95 (inc GST) — $9.05 AUD, exc GST
- **Quantity discounts:** 10+ $8.77 (exc GST) · 50+ $8.59 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA559:1` (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/ADA559:1.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

These chrome-plated metal buttons are rugged and waterproof and look real good while doing it! Simply drill a 16mm hole into any material up to 1/2" thick and you can fit these in place, there's even a rubber gasket to keep any water out of the enclosure. On the front of the button is a flat metal actuator, surrounded by a red plastic LED ring. On the back there are 3 contacts for the button (common, normally-open and normally-closed) and 2 for the red LED ring (+ and -). Connect 3 to 6V to the LED to have it light up nicely, there's a built in resistor! If you want to use this with a higher voltage, say 12V or 24V, simply add a 470 ohm resistor in series with the LED connection to keep the LED current at around 20mA. 

This button is a momentary push button, when you press it the 'normally-open' contact shorts to the common contact. When you release it, the contacts open up again.

The switch and LED are separated, so you could wire it to turn on when pressed or vice versa or whatever you wish! Check the tech details for information!

Don't forget to pick up some [Arcade/Button Quick-Connect Wire Pair - Set of 10](https://core-electronics.com.au/catalog/product/view/sku/%20ADA1152) pairs for easy installation!

## Technical Details

- Drill hole diameter: 16mm
- Switch rating: 3A / 250VDC
- Switch contacts: 1 NO, 1 NC
- Material: Chrome plated brass
- Grade: IP40/IP67
- Contact resistance: < 50 mOhm
- Insulation resistance: > 1000 Mohm
- Temperature: -20 C to +55 C
- Mechanical life: > 500,000
- Electrical life: > 50,000
- Panel thickness: 1-13mm
- Operating pressure: 1.5 - 2.5 N
- Operating stroke: 2mm
- Lamp rated voltage: 6V
 
 
![](https://core-electronics.com.au/media/remote_images/metal16mmbuttons_xT6NuD.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/5/5/559_1.jpg)