Just finished the install today. First sunny day in socal in about a week.
FF now has 3 wires coming out. The power, tx and temp sensor.
Temp sensor was zip tied to the sail mast and glue with silicone to the hull bottom. It appears to respond well to ambient temps. The hull should be pretty responsive to ambient water temps. I did a test with a temp gun, there is a 1 degree differential between the FF readout and outside temp of the hull. Adjusted for offset in the FF menu. Spot on now
Last look at the tx, sea trials tomorrow. Gonna bring a pump