Perko Chrome Barrel Bolt - 4" [0947DP2CHR] Communication | VHF - Handheld They are rugged units designed

They are rugged units designed to withstand the environment

Nominal Voltage: 12v DC

Additional features include wireless software updates from the Humminbird One-Boat App and a display of smartphone notifications on your Humminbird

Auto-drift feature automatically stops the motor when the anchor touches bottom (or hits an obstacle)

Manage Multiple Displays

Perko Chrome Barrel Bolt - 4" [0947DP2CHR] Communication | VHF - Handheld They are rugged units designedChrome Barrel Bolt 4" Features: Chrome Plated Bronze Body & High Impact Black Nylon Bulkhead Keeper 3 8" Diameter Bolt Bulkhead Keeper Easily Installs in a 5 8" Hole Includes Friction Pad to Eliminate Rattle and Provide Smooth Operation Overall Dimensions: 4 5 16" x 1 7 16"