Monitor Windvane For Sale 1990 model Monitor Windvane I bought it then plans changed so it was not mounted on my boat. The previous owner had it on a Kantor 48 and I was planning to use it on an Ontario 32. Depending on the boat you have you will need to buy or fabricate mounting brackets if the ones included do not work for you. The windvane is in very good shape I understand the previous owners did a rebuild and installed many new parts. There are numerous spares. Monitor windvane are one the of the best windvanes on the market and have made many notable passages., $2,000 and offers may be considered.