SYN-706-NMEA – Wind speed & Direction

Synchrotac SYN706-NMEA Series Heavy Duty Wind Speed and Direction Transmitter designed for general meteorological applications where accuracy, durability and long-term reliability are required even in severe climatic conditions.


Product Description

SYN-706-NMEA – Wind speed & Direction

The Synchrotac SYN706 series has a long history of reliable service in very aggressive environments such as in coastal tropical cyclone areas and oil rigs.

They are solidly constructed from naval bronze, brass, stainless steel and other corrosion resistant materials. Bearings are low friction stainless steel for a low starting threshold.

The instrument is sealed against dust, moisture and vermin ingress and mounts directly on a ¾ inch diameter (speed only) or 1½ inch diameter (speed & direction) male BSP thread. Special bearing lubricants ensure reliable operation over the temperature range and, under normal conditions, should give maintenance-free operation in excess of 10 years.


Synchrotac - Observator-LOGO

Wind Speed Transmitter Section

Cup Diameter:

  • 127mm (5’’) internal
Turning Circle Diameter:
  • 457mm (18’’)
Body Diameter:
  • 102mm (4’’)
Overall Height:
  • 239mm (9.4’’)
Mass of Cup Set:
  • 0.95kg (2.1lbs)
Overall Weight:
  • 3kg (6.6lbs)
  • ¾” BSP Female Thread
Maximum Wind Speed:
  • >100m/sec (>200 knots)
  • ±3% above 5m/sec
Transfer Coefficient:
  • 0.35 revs/meter

Wind Direction Transmitter Section

Vane Length:

  • 457mm (18’’)
Turning Circle Diameter:
  • 914mm (36’’)
Body Diameter:
  • 109mm (4.25’’)
Overall Height:
  • 329mm (13’’)
Mass of Vane Assembly:
  • 1.1kg (2.4lbs)
Overall Weight:
  • 9kg 1(9.8lbs)
  • 1½” BSP Female Thread
Starting Threshold:
  • <0.7m/sec.
Mechanical Travel:
  • 360° (continuous)
Operating Temperature:
  • -40°C to +60°C


Download SYN-706 Spec
Download SYN-706-NMEA Manual



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