These were made, at least some of them, but the Texas Weather Instruments folks who, for the display and stuff, did the assembly. I talked with the techs there a decade ago about one of these and I cannot recall what he said about the electronics in the box.
If I recall these were to be at schools and other places for starting a network, with accurate sensors as was pointed out.
And of course there is absolutely nothing like the green LED display for high visibility.
Question for jbesedic: You show the unit functioning in your Youtube video. Do you know if there is a data stream coming out of the COM DB9 plug on the back which could interface with any software, or will this just function as a sensor gathering and display unit?
