Featherweight, Incredibly Easy, Very Effective... The DepthTrax Handheld Series are the most versatile handheld depth sounders ever produced.  Not only will they produce instant depth readings, but they also deliver air and water temperature readings, all in the palm of your hand.  Use them in the winter to shoot through ice before cutting your hole.  Use them on your kayak or canoe to take depth readings on the fly.   Use them as a backup depth sounder on your pleasure boat or scan for channels in your dingy.    No matter how you use them, DepthTrax Handhelds are one piece of equipment you should never leave the dock without...