Up until Davis was purchased, the line was "Made in USA with US and imported parts". Circuit boards and any intellectual property sensitive parts were made in the US while parts like injection molded housings were sourced from wherever was cheapest.
The new owners (AEM) appear to have stuck with this model throughout the development and release of the AirLink, WeatherLink, and newer EnviroMonitor products. However, with the release of the new WeatherLink Console they appear to changed course. The Weatherlink Console sports a "Made in China" mark on the case. My guess is that the Davis product development team in the US has been either drastically shrunken or fully eliminated in favor of contract design and manufacturing.
Honestly, globalization is just a thing at this point. If you want to argue about something crappy that Davis is doing, it should be about their ever-increasing prices.