# 5.8GHz Microwave Radar Module (SEN0521)

**URL:** <https://forum.core-electronics.com.au/t/5-8ghz-microwave-radar-module-sen0521/23979>\
**Category:** Product Questions\
**Created:** [18 February 2026 05:54 UTC](https://forum.core-electronics.com.au/t/5-8ghz-microwave-radar-module-sen0521/23979 "2026-02-18T05:54:17Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Core](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/core/32/57_2.png) [@Core](https://forum.core-electronics.com.au/u/Core)\
**Post date:** [18 February 2026 05:54 UTC](https://forum.core-electronics.com.au/t/5-8ghz-microwave-radar-module-sen0521/23979/1 "2026-02-18T05:54:17Z")

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This is a placeholder topic for [**“5.8GHz Microwave Radar Module”**](https://core-electronics.com.au/58ghz-microwave-radar-module.html) comments.

![](https://core-electronics.com.au/media/catalog/product/cache/5ba536955e3e815f4e908e49c1dd8155/S/E/SEN0521-1.jpg)

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

[**Read more**](https://core-electronics.com.au/58ghz-microwave-radar-module.html)

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**Author:** ![Michael313308](https://avatars.discourse-cdn.com/v4/letter/m/ee59a6/32.png) [@Michael313308](https://forum.core-electronics.com.au/u/Michael313308)\
**Post date:** [18 February 2026 05:54 UTC](https://forum.core-electronics.com.au/t/5-8ghz-microwave-radar-module-sen0521/23979/2 "2026-02-18T05:54:38Z")

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I need a microwave sensor to mount externally in an adaptable box to operate a solenoid to supply water to a sprinkler to scare birds. The PIR sensor I am using just doesn’t cut it IE: not sensitive enough. Amy suggestions$

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**Author:** ![Michael313308](https://avatars.discourse-cdn.com/v4/letter/m/ee59a6/32.png) [@Michael313308](https://forum.core-electronics.com.au/u/Michael313308)\
**Post date:** [18 February 2026 05:55 UTC](https://forum.core-electronics.com.au/t/5-8ghz-microwave-radar-module-sen0521/23979/3 "2026-02-18T05:55:46Z")

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I need a microwave sensor to mount externally in an adaptable box to operate a solenoid to supply water to a sprinkler to scare birds. The PIR sensor I am using just doesn’t cut it IE: not sensitive enough. Any suggestions?

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**Author:** ![Jane](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/jane/32/12622_2.png) [@Jane](https://forum.core-electronics.com.au/u/Jane)\
**Post date:** [19 February 2026 04:29 UTC](https://forum.core-electronics.com.au/t/5-8ghz-microwave-radar-module-sen0521/23979/4 "2026-02-19T04:29:37Z")

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Hey there, @Michael313308, and welcome to the forum, glad to have you here.

Could you explain a little bit more about your current setup and why the PIR sensor is just not working? Is it that the birds are getting to close before the sensor is going off or that the sensor just is not detecting birds at all?