Cluster smoke alarm

I want to enable an automation (or something else if that works better) that if 1 smoke alarm triggers that my other smoke alarm also triggers.
I have 2 Heiman smoke detectors (SmokeSensor-EM by HEIMAN) and after a bit of reading it should be possible I think.

But the question is how?
Do I need to issue: zha.issue_zigbee_cluster_command or zha.warning_device_warn? Or is this completely the wrong approach?

Can someone help me on my way?

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I would also like to know how the ZHA cluster settings work. Looking to adjust the sensitivity of my Xiaomi smoke detectors.