air temp? depth gauge bad? 2008 sante 210

[scottb7]

Does anyone know where the air temp comes from? Must have sensor somewhere..

I see I have faria helmsman with sn0020 and sn0015 transducers?

sn0020 is for depth only
sn 0015 is temp and speed paddle wheel

Has anyone replaced their depth sn0020 sensor? mine does not work often. wondering if anyone has better luck and with what?

thanks