The OMC-139 is a marine wind display for indication of relative wind speed and direction. This display can read in the information of several wind speed and direction sensors and is standard provided with a NMEA0183 output The OMC-139 is suitable for flush mount and is housed in a standard 144x144 housing. Besides the normal Obsermet front the unit can also be supplied with a black OEM front, called the Black line.


  • Double led circle
  • Gust display
  • 2 minutes average & 10 minutes average
  • m/s, knots, mph, km/h and Beaufort
  • Analogue output wind speed & direction
  • NMEA-0183 output
  • Compatible with several wind sensors
  • Remote brightness control (optional)
  • 4..20 mA or 0...1 volt analogue output signals for speed & direction (optional)
Power Requirements Power supply – 230 Vac, 115 Vac, 24 Vdc
Outputs 15 v dc sensor supply, Direction sensor reference supply (2,5 Vdc), Signal transmission for daisy chain 4..20mA current loop, 300 Baud, ASCII-code
Inputs Wind speed pulse (optional), Direction pot meter (optional), 20 mA current loop, RS422 (optional), Remote brightness adjustment (optional)
Dimensions Size 144 x 144 x 94 mm, Weight 800 g
Environmental Operating temperature -30º to +60º C.
Moisture protection IP40
Humidity 5-90%
EMC BS EN 5008 –class B