We use a "AWOS"system made by Aerotechtelub A/B Sweden, basically a sysem that collects info from anemomenters, forward scatter meters, celiometers, etc,etc. The system can use sensors from most major manufactures, as well as the ones made by Aerotechtelub.
The TWR workstation is a single PC screen, keyboard and mouse. It runs standard Windows NT, and has a much more user friendly interface then Vaisalla. The layout itself can be altered to suit the operator, storage of settings can be linked to personal login.
You can use it to issue metar/metreport/synop in eighter manual, semi-automatic or fully automatic modes.
ESSA twr uses the system as integrated info system, replaceing all other display systems for met data.
(C) Flightpix.com
AWOS on left monitor