No special software is required. Employing the vendor’s iServer technology, the iBTHX serves active Web pages to display real-time readings; charts of barometric pressure, temperature and humidity; and logged data in standard formats for use in a data acquisition program, a spreadsheet such as Excel or a programming language such as Visual Basic. The iBTHX transmitter comes with a probe that measures barometric pressure, temperature, humidity and dew point in a single location. Pricing starts at $295.Omega Engineering Inc.www.omega.com203.359.1660