life of instruments


Danny and Yvonne SIMMS
 

Hi all (again), (sitting on the boat in a marina on a rainy day)
With well maintained and protected instruments, and SSB and VHF radios and chart plotters and Radar (as those on the Amel are) in your experience what is the useful life of these items before they need replacement? 
Regards
Danny
SM 299 Ocean Pearl

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