Velleman HAA27 Reed Switch for Alarm

i'm going to show you how you can use some of these three switches that i have laid out in front of me you can use them for all kinds of different cool different applications in your car or your boat or you know even in your house it applies to a switch is a switch you know switch is a switch it's all it is but i got three different kinds i have this here is an au 46 it's a mercury switch a little mercury in there a little mercury reaction also got this dei this is a pressure switch probably never seen this one here these are cool i'm gonna show you what these guys can do and i also have a normally closed magnetic contact switch or a magnetic reed switch maybe you've seen these on pit my ride you know where the guy opens the trunk and then the whole car starts doing some crazy antics we're going to use that too so basically what i got laid out here for you just so we understand what's g