Best Analogue IO App/Device for use in Flows

I’m looking for the best option to be able to use basic OFF/ON tags in flows within homey from an analogue IO device. I’m wanting to connect the latch sensors/PIR’s from my home alarm system which will trigger basic closed circuits when opened/motion detected. Then use these in Homey in my flows.
Does anyone know of any hardware which will do this, with a Homey App already available.
Or has anyone done this and could pass on some advice?
Looking to automate 8 inputs, so ideally not single input devices, and decent response times are key.
Apologies if this has already been mentioned.