How to connect these security sensors to Home Assistant?

Hardware
1

My home came with a bunch of wireless sensors that I was hoping to repurpose with Home Assistant. My assumption was that they were 433Mhz based and I could easily read the information from them using something like SONOFF RF Bridge. Unfortunately, that didn’t work, and I have no idea what technology they are based on so that I can start researching other approaches to integrate them with Home Assistant.

Based on these pictures, does anyone have any ideas about what kind of interface these sensors might use and/or how can I read the data off them to pull into HA?

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Thanks!

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Freq 319.5 in the 2nd last pic? Perhaps an RF band?

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Yes, your right! I missed that initially, but some searches based on that frequency got me some good results:

This is the sensor: https://www.123securityproducts.com/60-362n-29-319-5.html
This describes how to get it to work with HA ( I think): https://www.reddit.com/r/homeautomation/comments/akcccl/sniffer_for_interlogix_3195mhz_sensors/

Hardware/Software Needed:

I will try ordering that and see how far I get.

EDIT: Unless I try the zone pins on the receiver. My guess is that they might change voltage based on each of the sensors. So if I can connect a D1Mini and read the voltage changes, that might work as plan B.

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