This is probably a longshot, but maybe someone knows these.
I have recently acquired a set of XT200 temperature sensors, they are cheap, Chinese products and lack any kind of documentation. They are stated to be XT200 433Mhz Temperature sensors and come from a firm called Imagintronix. I've found a whole bunch of Chinese suppliers for exactly the same unit, but I cannot find the protocol these things use. I can receive the things just fine on my RFX USB device, but have a hard time making sense of just what I am receiving.
Has anyone seen these before and perhaps know the protocol? I've included some pictures, maybe somebody recognizes them. Anyone know the protocol these things use?