Binary door sensor & Smart life

I have a magnetic binary door sense that I use via the smart life app. I recently decided that I wanted the open door state to trigger something but I can’t see the device listed under devices?

I use the Tuya integration to see all the lights and switches that I have but it doesn’t seem to want to show me this device. Am I missing something?

Setting up that version of the API is ludicrously complex. Can anyone give me other options?