I have the cannon itellitroll which gives me the probe depth. Its usually anywhere from 8-14 ft when down over 80 ft. If I was you I would just get the x4. The coated cable is a pain. Im on my second one this yr. Was it my fault yes but still a pain. I've fished on a boat with a x4 so much easier only my unit has a advantage on is I know how deep my probe is depth raider and x4 don't give the depth of probe
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