Connect your Davis electronic barometer to a Windows PC

Davis WeatherLinkŪ software WeatherLinkŪ software, data logger, and custom cable allows you to store, graph, analyze, and share your data with others. $165.00   ...item# 1872c

Add WeatherLink to your Vantage Vue console (electronic barometer) for permanent records and studies of pressure trends on any time scale. The data logger and connector fit neatly into the weather station console, storing weather data, even when it's not connected to your PC, and then transfers it to your Windows PC. (There is no native Mac version, but this one works well with Mac Parallels or Fusion.) Then download the data manually or program it to load at desired intervals and use the software for detailed analysis and graphing. A versatile interface offers numerous options for display and analysis, including automatic recording of text files if desired. Samples of the simplest plots are shown below, but there are many variations. Note the drop in relative humidity was a direct result in the rise in air temperature below. The actual water vapor content of the air did not change in this time period.