Recommendations for Outdoor Motion Sensors for Driveway?

[Joe Wangkauf <tmo1138@xxxxxxxxxxxxxxxxxxxxxxxx>]

Hi,

I need to put some kind of outdoor motion sensor that will provide an
audible tone in front of my house pointing at my driveway.  Does anyone
have any recommendations?  Something I could perhaps order online?

It does *not* have to connect to my alarm system.

TIA.

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