Idea behind sensor naming is that it consists of 3 parts:
sensor type: "th" stands for combined temperature and humidity sensor, ...
sensor id: first and primary outdoor sensor is labeled "0", additional sensors get other ids.
measurement: sensors can give more than one piece of information. "th" sensors for example give temperature ("temp") and humidity ("hum") and Meteobridge also provides dew point ("dew") as separate data, which is computed form temp and hum.
Therefore, you see three "th0" entries: "th0temp", "th0hum", "th0dew" which all represent different pieces of data from the "th0" sensor.
I have a similar question, I think. We also have the Davis Vantage Pro2 Plus, only we only have the wind on a separate transmitter. We currently have the WeatherBridge (not PRO) connected via USB hub to the Davis console via it's datalogger. We've been having a lot of connectivity issues over the last month or so (WeatherBridge seemingly randomly disconnects from the internet, cannot access via browser, stops sending data to WU and other online services, etc.) and are thinking of upgrading to the PRO.
With the WeatherBridgePro, is it possible to get the data from the ISS (main sensor suite) and the wind transmitter without having the WeatherBridgePro connected to the console via the Davis Datalogger?
Yes, the Weather Bridge Pro (MeteoBridge Pro) can connect to multiple transmitters. I have a wireless Davis Vantage Pro2 Plus with temp and rain connected. The wind, solar and UV are located on a secondary wireless transmitter.
