Domoticz

I try a smoke and carbon monoxide detector First Alert, to coupling with Z-Wave (ZCOMBO).
But do not for one another.

I try to do so:
Software: Domoticz> Setup> Hardware> Z-Stick Gen5 Aeotec> Setup> Node Management> Node Include
ZCOMBO: I hold the test button and slide the battery compartment closed.

I also pushed several times on the Test button, but no matter what I try ZCOMBO is not found.

So how do I connect?

(Sorry for my bad English)

Info:
Raspberry B3+
Z-Stick Gen5 Aeotec
Domoticz Version: 2020.1
First Alert, ZCOMBO, Z-Wave

Whatever I try, I can't get it done, can someone help me with that?