Wireless is a pretty expensive option ...
I was interested in the Tack Tick instruments until I choked on the price. Maybe if I thought it would be a long term investment in the boat ...Three instuments that I really like on our boat and I think are essential.DepthSpeedWindIf you have a depth and speed log that are manufactured by somebody still in business, you could be in luck. We have DataMarine for depth and speed. I think they are out of business and their parts inventory may be dwindling. We were lucky enough to have to immediately replace the transducers for about $100 each. I also got a spare blank for $10 and it is crucial to have it. I also got an owners manual for their Corinthian Series instuments so I know how to calibrate and use the instruments. In my mind, they are high quality instruments and the previous owner(though he obviously made the upgrade) never took care of the transducers. He bottom painted right over the depth and the speed paddle! He also hauled the boat with the transducers in place. If you are lucky enough to replace the transducers (you need to know who manufactured the instruments and get compatible items), never, never, never haul our boat without taking the transducers out and putting the plugs in. You DON'T want the straps carelessly destroying the transducer when a plug can easily be substituted. You will only get years of exceptional service if you take care of the equipment! Now, both my instruments have worked perfectly for the past 3 seasons.BTW, I much prefer the speed log to the GPS. It gives me much better feedback because it is easily read on the bulkhead and the reading is consistent and constant and the 10ths of knots don't bounce all over the place like the GPS does and I think its stupid to be peering at a handheld GPS while I'm out sailing. I could see the value of a pedestal mounted GPS if the display was readable enough, though.We had a Kenyon wind instrument on the boat wehen we got it and it must have been original equipment. The instrument worked for a while put the display was poor quality. Soon after buying the boat, it stopped working and I only looked at the masthead indicator to watch the wind direction. That was a nuisance and I got stiff necks and the bimini was in the way besides.When we had the mast down for a refit last winter, I added a Simrad IS 12 wind instrument. It was about half the price of their premium IS 15 and I am very pleased with it. I wouldn't want to sail without a wind instrument now. If you want a wind instrument, you have to buy the entire package. You won't be able to buy individual parts to work with your mast head so don't bother. Wait until you take the mast down for a winter and replace the whole package. I recommend the one that I bought, as it is less expensive than the RayMarine (which would also be a high quality instrument).Now, I can look at the intrument to see wind direction and I don't have to crane my neck or peer out from under the bimini. On our lake, with winds that are never consistent, this has been the greatest aid to letting my wife or guests steer a course. I point out where the needle needs to be on the indicator and they can easily make the adjustments that are constantly necessary so we can keep a heading close to the wind without constantly luffing every time the wind veers ahead. This has been a great improvement and one that I think is essential.Hope that helps!