# Big Dome Push Button - Red

**Type:** Product page · **SKU:** COM-09181 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/big-dome-push-button-red.html ([markdown](https://core-electronics.com.au/big-dome-push-button-red.html.md))

It’s the end of the world, and you need a button to press. This is it. A 100mm diameter (outside diameter) dome illuminated push button comes with an LED, securing nut and a pre-installed long life horizontal microswitch. Button can also be adjusted to a low profile button by removing the middle ring.

## Pricing

- **Price:** $38.80 (inc GST) — $35.27 AUD, exc GST
- **Quantity discounts:** 5+ $34.22 (exc GST) · 25+ $33.51 (exc GST) · 100+ $32.10 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 3 today, and up to 50 more in 5–11 days.

## Description

It’s the end of the world, and you need a button to press. This is it. A 100mm diameter (outside diameter) dome illuminated push button comes with an LED, securing nut and a pre-installed long life horizontal microswitch. Button can also be adjusted to a low profile button by removing the middle ring.

The internal LED and microswitch have separate connections, so the LED behaviour depends on how you connect it.

**Features:**

- LED indicator light runs at 12VDC
- Bulb holder is easy to install or remove
- 3 Terminals Button Actuator microswitch included (NO and NC contacts)
- Microswitch reliability tested to 10,000,000 cycles
- Microswitch can be replaced
- Polycarbonate lens cap for optical clarity
 
**Dimensions:**

- 100 mm Diameter x 72 mm Height
- Net weight: 100grams
- Mounting hole diameter: 24 mm
 
**Documents:**

- Whack-Dome Demo Video
- [Whack-Dome Demo Sketch](https://core-electronics.com.au/attachments/localcontent/WhackDome_132560ecd8b.zip)

## Videos for this product

- [Sound FX Buzzer Project](https://core-electronics.com.au/videos/sound-fx-buzzer-project)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/b/i/big_dome_push_button_-_red__com-09181__01.jpg)