Looking for product buying advice

I am looking for some buying advice and if this post is in the wrong place, I apologise.

Background; I have an outside sensor that switches on outside lights and they work well as such but they do not integrate to Home Assistant and this is what I am trying to overcome.

Option 1:

A Shelly device that will trigger Home Assistant when the device is powered on by 240 volts. Combined with certain conditions in Home Assistant, I then want to activate the 240 volt output from the Shelly to switch on the lights.

Option 2:

A Shelly device that will trigger Home Assistant when the device is powered on by 240 volts. Combined with certain conditions in Home Assistant, then activate a set of dry contacts (normally open) on the Shelly.

Can someone please give me some advice if there is a Shelly device that I can use in either scenario?

I wasn't sure whether this should be posted here or in the Home Assistant subforum (moderators, if you feel that it should be moved, please do so).

The existing sensor is not compatible with Shelly, no doubt about that.

But that sensor switches 240 volts on and off so I could then use that to power the Shelly on when sensed and if Home Assistant can then react to that, I can then create an automation in Home Assistant to activate the output of the Shelly.

Alternatively, if I could have a set of dry contacts activated, that would also do the job. But I need to know what Shelly module can do this. This is my question.

Perhaps this post should be in the Home Assistant section instead.