THR316D - Dry Contact - Arduino

Hello Everyone,

Need a help with my project connecting THR316D with Arduino via dry contact.
It is stated in Sonoff manual “Dry contact output 5-30V. 1A Max”, can this be used to power arduino and recive NC/NO signals for further scenarios.

Know Arduino can run on 5V, but how to setup sonoff to give 5 volts, if that would even be possible.

Thank you