Had a look at the Invengo readers, they don't look like they are affordable enough for hackers - please correct me if I'm wrong. I would love to locate afforda

Had a look at the Invengo readers, they don't look like they are affordable enough for hackers - please correct me if I'm wrong. I would love to locate affordable multi-standard RFID readers. I would like to see a compact, cheap RFID reader that connects over PoE (both passive and IEEE 802.11af spec). The unit would only have to read tags and either send the reading over MQTT and/or support HTTP - long polling or maybe even WebSockets. Learning yet another in-house API, interface, etc is a stumbling block. That's why I prefer MQTT, it is well proven and easy to get going. Of course, the RFID reader would need to have a web interface for setup, diagnostics.