looking for motion sensor

Hi

Can anyone send me a link where can i buy motion sensor?

Thanks allot

Accelerometer?
PIR?
Doppler?

Can anyone send me a link where can i buy motion sensor?

What AWOL said but also:-
Where do you live?
Can you get stuff by post from any part of the world?

Yes you need to give what kind of technology you are looking into. Perhaps you are not sure? I had a small project where I made a IR trip wire. It was kind of like a motion detector... well more like a proximity sensor?

Google is your friend. By searching, you will get a bunch of primers on the technologies you could use. Here is an example of such an article:
https://www.elprocus.com/working-of-different-types-of-motion-sensors/

nimrodtal:
Can anyone send me a link where can i buy motion sensor?

https://www.amazon.com/RobotDyn-Motion-Arduino-Raspberry-projects/dp/B073RBH58C/ref=sr_1_7?s=industrial&ie=UTF8&qid=1512159210&sr=1-7&keywords=pir+sensor