The Mark-4 has easy-to-use menus and fast installation. The high-bright, sunlight-viewable, grayscale display is packed with all the features you could want.
The Mark-4 includes impressive detail on the 3.5 in/8.9 cm screen that virtually expands to 4X its size with the integrated TrackBack feature. TrackBack gives you greater control of your time on the water. Simply move the cursor back through sonar-display history, quickly identify baitfish, game-fish or structure and save a waypoint.
Includes a low-profile, high-speed, transom-mount, 83/200 kHz Skimmerr transducer with built-in temp sensor, and trolling motor-mount bracket option.
The Mark-4 is easy-to-install with a quick-release mounting system featuring tilt and swivel bracket for plug-and-play use. Or, it can be flush-mounted using the accessory mounting-kit option. For fast and smooth one-hand operation, the Mark-4 design includes easy-to-use page and menu controls. The simplified menus makes it easy to learn and use right out of the box.
Comes preloaded with a detailed basemap, and is compatible with Fishing Hotspotsr Pro, Navionicsr Gold and Premium charting upgrades through the built-in, waterproof microSD card slot.
We are pleased to announce our new shipping promotions below. These rates apply to your entire order*!
|Free shipping||FREE!||6 to 10 Business Days|
|Ground Shipping||$5.95||1-6 Business Days|
|3 Day Shipping||$9.95||3 Business Days|
|2 Day Shipping||$18.95||2 Business Days|
|1 Day Shipping||$28.95||1 Business Day|
*These offers apply to in-stock orders to the lower 48 states only. We cannot include shipments to Alaska, Hawaii, Puerto Rico or any other US Territory. Please call or email us for rates to these locations. Oversized packages are also excluded for 3, 2, and next day shipping. Items that are shipped freight are also excluded. Because we have many different warehouses around the United States we reserve the right to choose the carrier. Signature service can be requested for $3 extra.
We speak French, German, and Italian!
Please use the shipping calculator for an accurate shipping quote.
We ship via DHL International and USPS. Shipping insurance is optional but recommended and costs $5 for all international orders. Items that can fit in a flat rate envelope are shipped via flat rate service. Please keep in mind that USPS Flat Rate Priority Mail does not include detailed tracking and is not covered by insurance to certain countries. For a list of these countries please email us.
International order processing takes approx. 3-5 business days.
Many countries impose their own customs, duties, tariffs, taxes, etc... on items imported from the USA. We do not cover those costs.
The shipping transit times are approx. as follow:
|DHL International Economy:||5-7 business days (trackable)|
|USPS Express (EMS) Mail:||1-2 weeks (trackable)|
|USPS Global Priority Mail:||2-3 weeks, (trackable)|
|USPS Flat Rate Priority Mail:||4-5 weeks (not trackable)|