Lowrance GK-12 Knobs f/HDS Series - Set of 2 [124-56] Cartography | Garmin BlueChart Vision Improved digital sonar design provides

Improved digital sonar design provides extraordinary target definition and deep water performance

Significantly Smarter

This feature displays high-resolution Depth Range Shading for up to 10 depth ranges so you can view your designated target depth

The resulting vertical beam provides excellent echo returns for more accurate depth readings

AIS™ 300/600 Blackbox Transceiver

Lowrance GK-12 Knobs f/HDS Series - Set of 2 [124-56] Cartography | Garmin BlueChart Vision Improved digital sonar design providesGimbal Knob Set for all HDS units. Included with purchase of GB 19 gimbal bracket. Specifications: Type: Mounting Brackets Box Dimensions: 1"H x 3"W x 4"L WT: 0. 1 lbs UPC: 042194533360