What battery do I need for my DT1H? Follow NMP Support Center February 11, 2020 19:10 Updated YOu will need a 9-volt battery. Related articles DepthTrax 1H Handheld Depth Finder Tech Tutorial All I get is "---" readings on my depth sounder in certain places. I've noticed that these places have very soft/muddy bottoms and/or very dirty/silty water. Can I turn on the handheld depth finder before I put it in the water? Why We Don't Provide Paper Manuals I have a transom mounted transducer. Why does my gauge read fine sitting still but stops working when moving? Comments 0 comments Please sign in to leave a comment.
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