You can use an Aqara Double Relay or just about any dual relay. You just need to close an extra set of relays with the wireless relay. That will give you two dry contacts that you can keep dry or put any voltage and current through them, that the additional relays can handle.
This is how I control my alarm system’s 3V DC remote with a 120v AC Xiaomi Dual Relay. I’ve used this method a few times now. The cost is just $9 extra for two relays
https://www.amazon.com/Omron-LY2-UA-006244-Relay-General-Purpose/dp/B01NAXIBKB
