Get the Garmin 100 fishfinder that merges technology with fishing for a bulky catch. Featuring a 200 kHz sounder frequency, this Garmin fishfinder clearly helps you to discriminate between the fish and the bottom, at a depth of up to 200 feet max. With a 160x100 pixel-resolution, the 2.5-inch LCD display, of this Garmin fishfinder unveils the underwater world to clear all speculations. Being waterproof, this marine navigator can be submerged in one meter of water for up to thirty minutes. The See-Thru technology, incorporated by the Garmin 100 fishfinder, allows you to locate fish breeding sites. A graphic whiteline included on the Garmin fishfinder reveals the bottom structures and hardness. With a power output of 1,200 watts (peak to peak), this marine navigator is able to give you an accurate picture of the underwater environment.