Hi guys thanks for the reply and sorry for my late response.
I was really working hard on my project.
I knew that using resistor would lower the sensitivity, but the main problem was exactly where should I use it.
Cos I tried millions of options but whenever i tried to connect the other end to the ground the current was 0. It stopped working.
If you can, please guide me to build the circuit so I could use the power of resistor to lower the vibration sensor sensitivity.
I know for you it is so simple, but for me it is nightmare.
Thanks in advance
Alex