On the outside, the unit comes packaged in an attractive case that measures 5" w x 4.9" h x 2.5" d. The 2.5-inch diagonal display that makes detecting fish easy on the eyes, and it delivers the big picture thanks to a blue/green, LCD, STN display with 160 x 100 pixels. Even better, you don't have to worry about this unit getting splashed as you reel in your fish because it was designed to withstand immersion in one meter of water for up to 30 minutes.

But it's what's inside that really makes the Fishfinder 100 so impressive. The unit comes standard with GARMIN's exclusive See-Thru™ technology that allows it to hear both weak and strong signals at the same time. A graphic whiteline also included on the fishfinder helps present a clear image of bottom hardness and structure. The benefit to fishing enthusiasts is a sounder that will detect fish even when suspended inside structure and thermoclines. What's more, a power output of 150 watts (RMS) and 1200 watts (peak to peak) means the Fishfinder 100 will give you an accurate picture of what's in the water.

NOTE: A transducer is required for operation of the FishFinder 100. A plastic, transom mount transducer with depth and temperature is supplied with 010-00198-01. If you wish to use another type of transducer you could purchase the FishFinder 100 without a transducer (010-00198-00) and pair it with one of GARMIN's range of single-frequency transducers. Click here for a list of compatible transducers.