Raymarine ST-60 Thru Hull Holes

[sailstoo]

I have an opportunity to buy a couple of new ST-60 instruments, depth and speed at a fair price. Yes, I know they're discontinued but they match the wind instrument I already have. I also have a couple of old Signet speed and depth instruments that are marginally functional. The question is, are the thru-hull holes for the old depth transducer and the speed wheel the same size as the ST-60 transducers? I'd go measure them but the boats 250 miles away. Thanks for the help.

[Ex-Calif]

Originally Posted by sailstoo

I have an opportunity to buy a couple of new ST-60 instruments, depth and speed at a fair price. Yes, I know they're discontinued but they match the wind instrument I already have. I also have a couple of old Signet speed and depth instruments that are marginally functional. The question is, are the thru-hull holes for the old depth transducer and the speed wheel the same size as the ST-60 transducers? I'd go measure them but the boats 250 miles away. Thanks for the help.

This will be hard to say. I replaced an ST60 speed log with a used, newer ST60 speed log. The thru-hull was bigger and I had to expand it.