Circuit that i'm going to use as a bike alarm

[Gughanath]

I have a circuit that I am going to use as a bike alarm. The problem is that I will need a tilt switch which acts like a push-to-break switch ...is it possible to get a switch like that? ...or are there any alternatives?please reply...

 

[Macgyver]

I bet you could use a mercury switch, it would be more of a movement alarm. Most of the ones that i have seen are just a small glass tube with mercury inside, and there are 4 contacts two near the middle, on opposing sides and one at each end. So you could wire it either as a tilt-to-close or tilt-to-open switch. (there is only enough mercury in the tube to connect two contacts at a time)

I think you want a ON-(off) switch. It is the 3rd on down on this site: http://www.kpsec.freeuk.com/components/switch.htm