I can’t add a link but the store I used on Ali was Asia-Teco for their 13.56 reader “waterproof 125KHz 13.56MHz compatible proximity reader”. It is about the size of a AU10 cent piece or US dime.
It works with the Wiegand standard 26 bit.
The controller is from same place. It is called “Sboard mini single door access control board”.
Both around $AU28.
The instructions on the controller were a bit hard to understand in terms of placing the jumpers. They have to be repositioned if you want the relay to work as an unpowered circuit. When I first read them I thought you just had to remove one but you actually have to turn it. If anyone gets this and needs help I can send a pick of mine. Without moving the jumpers it operates as a relay which provides power on the NO or NC wire.
Hope it helps. I have tried the “vulnerability” on these (assuming I have understood what it uses) and they appear safe.