Garmin eTrex Cig Socket Power Lead

If you are after a good simple colour fishfinder with GPS then this is a great unit to look at. It has a 3.5" 480 X 320 HVGA waterproof screen with an internal high sensitivity GPS receiver. The transom mount transducer is dual frequency and operates on 77 and 200 kHz giving you a usable depth reading of up to approx 120m. You can store up to 5000 waypoints and it has all the audible alarms including depth and shallow water.  

The powerfully simple 4.3-inch colour Garmin Plus 4cv is a combined fishfinder with built in GPS so not only can you see your speed on the screen but you can mark and return to your fishing hotspots with ease. It includes an all-in-one transducer that delivers both advanced Chirp 77/200 kHz and 455/800kHz Garmin ClearVu scanned images simultaneously on a horizontally or vertically split screen. The images provide the clearest possible sonar picture of fish returns and nearly photographic structure detail under the boat. Includes a quick-release tilt/swivel mount plus transom and low-profile trolling motor transducer mounts to make installation a snap.

The Garmin Striker Plus 5cv has all the same specifications as the 4cv above including ClearVu however it comes with a 5 inch 800 x 480V Pixel WVGA high colour screen. With its built in high-sensitivity GPS you can see your position in relation to waypoints you have marked. Use the plotter screen to easily view, mark and navigate to locations such as underground structure, drop offs and fishing hot spots.