There are many wireless units for ice fishing but usually have their own readout display and not meant to be mounted or used while moving. You would need a new transducer anyway so why not just use a new thru hull readout transducer for your current system. Easy to install and relatively cheap IMHO. Good luck, not fun not knowing how much water is under you. We had to do this for 9 days this past summer and it is a little unnerving.
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Allan
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