Audio alert w/ Siren

Tonight HSM was triggered (possibly a false alarm by one sensor with low battery), and I didn't know where to go and check. I had thought of adding audible alerts, but I believe they would go off along with the siren so that I wouldn't be able to listen to them.

Would it be possible to speak and then, after a configured delay, to trigger the siren? And maybe repeat the cycle by explicitly stopping the siren?

I don't think this is possible in HSM. What you can do is create a virtual switch that HSM triggers via a Light Alert. Then you can use Rule Machine or WebCoRE to manage the cycle of speaking and siren until the virtual switch is turned off. The downside to this is that I don't think there is an easy way to have the voice alert say which device detected the intrusion.

If you need to know if a battery is low on a device and for that matter which device it is, you can create a Custom Monitoring Rule in HSM. Here is how I have mine set up: