Electronic combination lock with 'left open' warning

It's possible to get electronic locks that fit the same footprint as
standard mechanical dial combination locks.
Are there any such electronic lock models that could be set to beep
once left open for say five minutes in order to remind the user to
lock it. I've had a look on the internet and so far an S&G Z-02 with
optional bolt position indicator and some electronics inside the
cabinet could be the best option.
It would be much better if were already built into the lock without
needing extra wiring and electronics - any suggestions?
Tim
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