Wind direction transmitter is part of F-420 wind speed and direction system. F-420c-ts wind direction indicators for f-420 wind system F-420c-wdi wind retransmitter part of Ff-420c wind system. F-420c-wr wind direction calibrator part of F-420c wind system F-420c wind speed calibrator part of f-420c. 6974AN01131001,6974AN01131002,6974AN01131003 6974AN01131006,6974AN01131007 MULTI ITEMS