...serial number tag (on the bottom) has an 'X' after the model number.....Pmax 210X then you can change it to meters. The 'X' means international. If it is a US domestic model you are stuck with feet. ...
...update the software in the unit you can go to Humminbird.com and register your unit and create an account. You will have to have the unit type and the serial number to do this. This is free of
...serial number all software available for that product will be made available to you through the My Profile Section. From there you can see the latest software revision number to compare to your unit ...
...HUMMINBIRD PTM 600M FISHFINDER SERIAL NUMBER 3108227 TECHSONIC INDUSTRIES INC. EUFAULA ALABAMA 36027. WOULD APPRECIATED IF YOU COULD HELP ME You can download the manual from Retrevo, Here is a link ...
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