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A mercury switch makes a very effective readily available low cost tamper switch regardless of how old tech you or anyone else may think it is. Two switches mounted at right angles makes something damned near impossible to pick up and move without triggering at least one of them and that is when you know they are there.

We use them as event counters in a tilt application at work BTW.

[QUOTE="Captain Kilowatt, post: 423079, member: 39"] A mercury switch makes a very effective readily available low cost tamper switch regardless of how old tech you or anyone else may think it is. Two switches mounted at right angles makes something damned near impossible to pick up and move without triggering at least one of them and that is when you know they are there. We use them as event counters in a tilt application at work BTW. [/QUOTE]

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