The Omega iBTHX, from Omega Engineering Ltd, transmitter lets you monitor and record barometric
pressure, temperature, relative humidity and dew point over an Ethernet network or the Internet simply by using a Web Browser, no special software is required. Employing Omega's award winning 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.