sonic speed on SM 2000

Marco Mancini

 On our SM the sonic speed,  the one with the two sensors,  that is connected to Hydra 200 is giving zero speed on the hydra 2000 monitor.
This was probably due to the loss of the neoprene cap of the aft  sensor . Unfortunately this probe is out of production from long time.

Please Did  you hknow how to  repair it ?  Do you know how replace the cable and the aft sensor?
Italy SM304

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