Buzzer systems and airport security?

Has anybody ever had trouble getting a buzzer system through security 
at airports? We're going to need to take ours on a cross-country 
flight and I can sort of see how it would look suspicious- the 
briefcase, the lights, the wires, all those little plungers to push. 
It seems more like a carry-on item than a check-in item, and it would 
be a major problem to us if it was confiscated, as we won't be able 
to afford another one for a long (long, long) time. Just curious. 
Thanks in advance.

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