SLOweather,
The temperature signal is NOT going into a computer (initially it will be, for testing only), and I really, really need a voltage signal, not digital. Actually it won't be read at an analog meter either (although it could if I ever find my ideal sensor).
Those search terms bring up a lot of data. "wireless thermometer analog receiver" would be ideal. With your suggestions I found some industrial devices, a little too pricey.
I am building a device, computer-free and unprocessed by computer, that will perform a function based upon an average temperature. Can't say much more than that, except it will be built around an analog (voltage) wireless thermometer if one exists. My electronic abilities can handle analog, not digital. And it certainly could be easily accomplished with a thermocouple hard-wired from the outside but that is not wireless, one necessary requirement.
I may have to teach myself some digital electronics, might be easier if I can't find an OTC analog version. That information could probably be obtained by modifying a digital unit (warranty no longer valid).
Thanks for all the comments.