Loud notification sounds on ios

The iOS app gives the choice of a very pleasing Wyze notification sound and the standard Apple alert. Neither is particularly loud and I would likely miss them in a noisy room or if asleep.

The iPhone does have some loud alert sounds in its repertoire (eg the stopwatch alarm). If a sensor detects an unexpected person in my house, I would hate to sleep through the alert.

Any way to use one of those loud alarm sounds?

I’m afraid not. It is a limitation that Apple has imposed for whatever reason.