Ancor Adhesive Lined Heat Shrink Tubing (ALT) - 3/4" x 12" - 4-Pack - Red [306624] Lewmar 30mm Control Blocks so you have a watertight

so you have a watertight defense against the elements

and a waterproof switch

The rate of transmission has been greatly increased by more than 30% compared with current conventional fish finders

Low power consumption and quieter operation for on-board pressurized freshwater models

Ancor Adhesive Lined Heat Shrink Tubing (ALT) - 3/4" x 12" - 4-Pack - Red [306624] Lewmar 30mm Control Blocks so you have a watertightAdhesive Lined Heat Shrink Tubing (ALT) 3 4" x 12" 4 Pack Red Package of 4 Red 12"(30. 5cm) long sections with a 3 4"(19mm) diameter that shrinks to 1 4"(6. 4mm) Wire Range: 8 2 0 AWG Features: Cross Linked polyolefin tubing is much stronger than PVC tubing and will not burn like PVC Heat activated adhesive lining provides impervious seal to salt water, oil, acids, and sunlight as well as providing strain relief Highest shrink ratio shrinks to 1 3