I am an amateur chess player and I am considering flying from the US to Europe with the following chess clock:
I am a concerned that the clock is a bit "scary-looking". It's also quite sturdy and made of metal (aluminum) so I guess (my Physics is a bit rusty) that it's like a Faraday cage with mostly empty space inside it (basically some tiny electronics, some wires and two AA batteries). As such, I am not sure how it shows / registers on the equipment they use and whether it might cause the operators to be concerned.
Is it safe to assume that I will be allowed to take it with me in the cabin as checked luggage? Or should I perhaps take it with me to the airport already opened so they can inspect what's inside it? (there is a panel that you need to unscrew to change the batteries or see what's inside — so a screwdriver is required).