> **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

# 5.8GHz Microwave Radar Module

**Type:** Product page · **SKU:** SEN0521 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/58ghz-microwave-radar-module.html ([markdown](https://core-electronics.com.au/58ghz-microwave-radar-module.html.md))

This microwave sensor is a microwave module that can transmit the electromagnetic wave of 5.8GHz. It can detect the difference between the transmitted...

## Pricing

- **Price:** $23.70 (inc GST) — $21.55 AUD, exc GST
- **Quantity discounts:** 6+ $20.47 (exc GST) · 12+ $19.61 (exc GST)

## Availability & dispatch

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

## Restrictions

**For use in Australia**

- Operate only in bands and with settings that are permitted for your location and application. Check this product’s supported frequencies in the description/specs.
- If you intend to operate outside shared/licence‑exempt conditions (e.g. in other bands, at higher power, with high‑gain antennas, or extended duty cycles), you must have the appropriate authorisation.
 
**For use in other regions**

- Follow the spectrum rules for your country/region and select frequencies and settings accordingly.

A declaration of use will need to be submitted during checkout.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0521:1` (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/SEN0521:1.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

**Introduction**

This microwave sensor is a microwave module that can transmit the electromagnetic wave of 5.8GHz. It can detect the difference between the transmitted wave and reflection wave to judge whether there is an object moving in the detection area.

Different from the traditional sensors that can only judge human presence by detecting big body movements, this microwave sensor can perform well in detecting small movements like breathing so as to determine human presence even if the person is sitting or sleeping. The detected result can be output through the serial port or high/low level of the I/O port.

Featuring high reliability and sensitivity, and strong anti-interference, it is small and easy to integrate, which can be widely used in fields that require motion detection, such as lighting, security, home, home appliances, hotels, garages, buildings, traffic, etc.

**![](https://core-electronics.com.au/attachments/localcontent/OVERVIEW_28646112499.jpg)**

**Board Overview**

**![](https://core-electronics.com.au/attachments/localcontent/CONNECT_32693c1af87.jpg)**

**Wiring Diagram Example**

 **Features**

- High reliability
- High sensitivity
- Strong anti-interference
 
 **Applications**

- Lighting
- Security
- Home appliances
- Hotels
- Garages
- Buildings
- Traffic
 
 **Specification**

- Operating Voltage: 4.5~5.5V
- Operating Current: 22mA
- Detection Distance: 11m
- Equivalent Transmission Power: 3-5dBM
- Beam Angle: 120\*120°
- Modulation Mode: FMCW, CW
- Operating Frequency: 24GHz
- Operating Temperature: -40°C ~ 85°C
- Baud Rate: 115200
- Dimension: 20\*18mm/0.79\*0.71"
 
 **Documents**

- [Product wiki](https://wiki.dfrobot.com/SKU_SEN0521_5.8GHz_Microwave_Radar_Module)
 
 **Parts List**

- 5.8GHz Microwave Radar Module x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0521-1.jpg)