# Reed Switch

**Type:** Product page · **SKU:** COM-08642 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/reed-switch.html ([markdown](https://core-electronics.com.au/reed-switch.html.md))

This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. This switch can carry up to 1.2A.

## Pricing

- **Price:** $3.80 (inc GST) — $3.45 AUD, exc GST
- **Quantity discounts:** 5+ $3.35 (exc GST) · 25+ $3.28 (exc GST) · 100+ $3.15 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 7 today, and up to 200 more in 5–11 days.

## Description

This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. This switch can carry up to 1.2A.

**Documents:**

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/MDSR-4_9021207369b.pdf)
- [Application Note](https://core-electronics.com.au/attachments/localcontent/AN104_322477008eb.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/r/e/reed_switch__com-08642__01.jpg)