English translation: child safety device (please see question for more options)
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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:
child safety device (please see question for more options)
My text mentions different "Kindersicherungen", for example a fingerprint sensor so that the kids cannot start the car by themselves, the "Kindersicherung" in the door and so on.
I don't remember where, but I found "childproof safety guard" somewhere, but I am not sure about this term.
I am thinking about "childproof safety device", but maybe you can come up with a better solution.
Thanks a lot for all your contributions. Louise's answer works best for me, because I was looking for a more general term, since my text talks about different "child safety devices", and not just about locks, as I stated in my question, although locks are mentioned too. 4 KudoZ points were awarded for this answer