The RockBox - By Rock City Marine!

5 Functions:

• Speed: velocity in knots
• VMG: velocity made good to a heading you choose
• Heading: current course in degrees true
• Knock/Lift: visual graph and current heading
• DoubleVision: speed and heading shown at the same time

Features:

• Huge graphic LCD display - How big is big?
• Backlight for rocking all night
• No through hulls to slow you down
• No wires - installs in seconds
• Waterproof to IP67/NEMA 4X standards
• GPS based technology
• Over 24 hours battery life on regular AA batteries!
• Installs in seconds
• Easy to use

$599

Get 10% off at checkout until July 31st !!!

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Get out and ROCK!