NASA
NASA MeteoMan Barometer with Masthead unit
Atmospheric pressure range. Wind direction . Port 180 degrees to Starboard 180 degrees (in nautical mode). Displayed in analogue and digital format. Resolution 1 degree. Range 1 950 to 1050mb. Real time clock 12 or 24 hour format. Race countdown timer 10 and 5 minutes. Wind speed history Range 1 0 to 100 knots.