@TheOnlyNexus if you have the remote you can press the buttons and check the debug messages. If I am not wrong your plugs should be switch1 of switch 2 protocol.
Please also check here for your RF hardware!!
And as @countjuh said maybe try with an antenna connected. An helicoil or maybe just a 17.3 cm wide should do the job, one the sender and on the transmitter.
Getting a status from a common 433mhz device won’t work since this is just a one way protocol unless your hardware has a sender and receiver. There is a kaku switch that can do this but actually i don’t know the type number.