Got this yesterday. I live in an isolated place. This monitors the lane to my house. I have set the sensor on a loose post, just to play with it.. Its about 80 paces from my front door but before you get to some of my outbuildings. Range is about 500 foot. I set the sensor high so the cats do not set it off. Picks up a person or vehicle no problem. You can plug the speaker into any socket. There about 50 different tunes but I haven't tried them yet. First impressions are its a very useful bit of kit. Might have another for the workshop. It was about £28 from Amazon.
First picture is the speaker indoors.
[url=https://flic.kr/p/2iGZsL7]p1 by kymco kid, on Flickr[/URL]
Next picture the sensor.
[url=https://flic.kr/p/2iGWHDr]p2 by kymco kid, on Flickr[/URL]
First picture is the speaker indoors.
[url=https://flic.kr/p/2iGZsL7]p1 by kymco kid, on Flickr[/URL]
Next picture the sensor.
[url=https://flic.kr/p/2iGWHDr]p2 by kymco kid, on Flickr[/URL]