Sage Zigbee Doorbell Sensor

I have this device and could ONLY get it to work with a mechanical door chime. Without a chime it would flip back and forth between press and no press constantly.

So does this work with a dumb mechanical doorbell and Z2M?

I would just like to get doorbell presses, I tried a aqara vibration sensor but its not reliable at catching all presses.

Yes. That’s the scenario this SAGE doorbell sensor is designed for.
Back then the entire video doorbell thing was just about to start / weren’t even popular.