Maximize every moment of fishing when you upgrade to the unrivaled accuracy and detail of Humminbird LakeMaster mapping, which features easy-to-read contours, highlighted depth ranges, and scrollable lake lists. LakeMaster digital maps provide the most detailed, high-definition collection of freshwater mapping in the United States, with unmatched depth contours between 1-3 feet (in high definition) or 3-5 feet (standard definition). This Northeast States Edition, Version 2 boasts more than 130 high-definition lakes and over 1,700 total lakes from PA, NJ, NY, CT, MA, VT, NH, and ME, adding over 200 new lakes since the prior version (27 in high definition). Newly surveyed waters include Annabessacook, Big Pond, Chickawaukie, and Crescent in ME; Cayuga, Oneida, Seneca, and Six Mile in NY; and Chambers, Raystown, St. Lawrence Moses East, Champlain and Ossipee in PA, VT, and NH. Easy-to-see shading highlights shallow-water areas within an adjustable range up to 30 feet, and depth contours and shorelines can be synchronized with the actual water levels of lakes, reservoirs, and rivers. LakeMaster digital maps can be used with Minn Kota i-Pilot Link (sold separately), allowing you to follow a selected depth contour line to deliver precise, automatic boat control. Collected by Humminbird's own team of GIS analyst cartographers, LakeMaster high-definition maps are created from on-the-water surveys using hundreds of thousands of depth soundings plus state-of-the-art GPS and sonar technologies. LakeMaster digital maps come on a Micro SD card (with included SD card adapter) that's compatible with all GPS-equipped HELIX, SOLIX, ONIX, and ION Series models and select 600-1100 Series models. Strictly intended for use in your Humminbird GPS unit, LakeMaster mapping cards are not PC compatible and map files could be corrupted if accessed on a computer.LakeMaster digital maps come on a Micro SD card (with included SD card adapter) that's compatible with all GPS-equipped HELIX, SOLIX, ONIX, and ION Series models and select 600-1100 Series models. LakeMaster digital maps can be used with Minn Kota i-Pilot Link (sold separately), allowing you to follow a selected depth contour line to deliver precise, automatic boat control. Easy-to-see shading highlights shallow-water areas within an adjustable range up to 30 feet, and depth contours and shorelines can be synchronized with the actual water levels of lakes, reservoirs, and rivers. This Northeast States Edition, Version 2 boasts more than 130 high-definition lakes and over 1,700 total lakes from PA, NJ, NY, CT, MA, VT, NH, and ME, adding over 200 new lakes since the prior version (27 in high definition). Maximize every moment of fishing when you upgrade to the unrivaled accuracy and detail of Humminbird LakeMaster mapping, which features easy-to-read contours, highlighted depth ranges, and scrollable lake lists.Are Batteries Included: No. Control Method: Touch. Item Weight: 0.29 Pounds. Item Dimensions LxWxH: 8 x 5 x 1 inches. Included Components: Includes micro SD card with full size adapter and water resistant SD card carrying case. Sport Type: Fishing. Map Type: North America. Screen Size: 27 Inches. Model Name: LakeMaster. Brand: Humminbird. Date First Available: February 16, 2017. Best Sellers Rank: #79,817 in Electronics. Customer Reviews: 4.6 out of 5 stars 17 ratings 4.6 out of 5 stars. : B06WGR78M7. Fishing Technique: ?Any. Sport Type: ?Fishing. Size: ?LakeMaster. Included Components: ?Includes micro SD card with full size adapter and water resistant SD card carrying case. Style: ?Lakemaster. Part Number: ?600045-3. Manufacturer: ?Humminbird. Number of Items: ?1. Suggested Users: ?unisex-adult. Material: ?plastic. Model Name: ?LakeMaster. Warranty Description: ?30-day manufacturer. Brand Name: ?Humminbird. Item Weight: ?0.29 Pounds. Item Dimensions LxWxH: ?8 x 5 x 1 inches. Package Weight: ?0.16 Kilograms. Item Package Dimensions L x W x H: ?7.44 x 5.39 x 1.22 inches.