lefty if you have any other questions i will be more than happy to help you out
I am actually looking at this one.... it looks like it has a screen that looks like a flasher with the colors for the the water column, fish, and your lure..... I think it may be the newer model of the 67...
Here's the info I got off of fishusa.com...
Lowrance M68C S/Map Combo Ice Machine
The new Lowrance M68C S/Map Combo Ice Machine features a portable Sonar, GPS+WAAS and detailed marine mapping built into one unit for a total depth, fish locator and GPS mapping solution!
The "Ice Machine" mode color digital LCD display provides sharply defined real time sonar readings, as well as an adjustable on-screen sensitivity control bar. The Colorline feature separates fish and structure from the bottom, as well as indicating bottom composition and hardness. This mode also includes a battery status indicator, with continuous readings from fully charged to empty.
The scrolling graph display mode indicates targets as flat lines. Movements of the fish are easily detected by the up and down variations in the straight line targets on the screen. You can often see your lure in this mode, enabling you to just adjust the lure's depth to match the vertical movement of the fish in real time.
Key features of the M68C S/Map Combo Ice Machine include the following:
3.5" diagonal sun-readable display
256 color, 320 x 240 pixel resolution, 1/4 VGA active matrix TFT display
Over lay feature displays GPS data over sonar screens or sonar data over GPS screens
White LED backlighting for the screen and keypad in low-light or night conditions
Water-repelant, soft nylon pack bag with carrying handles and rubberized bottom
Built-in molded tray with tie downs
12 volt, 7 amp rechargeable, sealed battery and charger included
Swing out ice hole transducer bracket
Unit fits in a five gallon bucket
One year manufacturer's warranty, with extended warranties available
GPS and mapping specifications include the following:
Full twelve parallel channel GPS and WAAS receiver with an advanced internal satellite antenna
All new, built in Lowrance background map with special hydrography mapping details
Maps cover major inland lakes, the Great Lakes, and costal waters of the continental U.S.
Maps include enhanced shoreline detail, navigation aids, wrecks, and obstructions
Mega memory saves up to 1,000 way points, 1,000 event markers, and 100 routes
100 savable and retraceable plot trails with up to 10,000 points in any trail
42 geographic icons to mark favorite fishing, hunting or other recreational spots
Over 30 map ranges, from .02 to 4,000 miles, with easy zoom in/out control
Off course/arrival/anchor alarms, trip and sun/moon calculators
Performance features include the following:
Depth penetration to 600 feet
True 800 watts peak to peak transmit power (100 watts RMS)
Exclusive new full screen and split zoom color LCD flasher display with Colorline
Battery status indicator displays continuous readouts of battery life
FishReveal feature exposes fish targets in cover
Advanced Signal Processing (ASP) for the clearest pictures
Selective on/off of Advanced Fish Symbol I.D.
Selective on/off of FishTrack
Shallow/deep fish alarms
5' to 800' depth range display choices with upper and lower depth control limits
Internal backup memory keeps preferred sonar setting and GPS data accessible for years
Completely sealed and waterproof, for use in all weather conditions
Transducer specifications include the following:
Special 200 kHz bullet shaped transducer produces up to 60 degrees of coverage area
Accepts optional Lowrance transducers for all season portable fish finding
Optional Skimmer transducers available for boat operation up to 70 mph