Tech Specs
In The Box
GT20-TM transducer
Power/data cable
Tilt mount
Flush mount
Hardware
Documentation
Manual & Warranty
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
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Tech Specs
In The Box
GT20-TM transducer
Power/data cable
Tilt mount
Flush mount
Hardware
Documentation
Manual & Warranty
Trade-In
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
Overview
Garmin ECHOMAP UHD2 7" Chartplotter with GT20-TM Transducer and Navionics+ Inland Maps
Introduction
The Garmin ECHOMAP UHD2 7" cv Chartplotter (Model 010-02594-51) combines high-resolution sonar imaging with detailed inland mapping to give anglers real-time underwater visibility and navigation intelligence. Equipped with the GT20-TM transducer and preloaded Garmin Navionics+ U.S. Inland Maps, this device delivers the clarity and precision needed to locate fish quickly, read bottom structure accurately, and navigate unfamiliar waters with confidence. Whether you fish lakes, rivers, or reservoirs, the ECHOMAP UHD2 cuts through guesswork and puts productive water right in front of you.
Key Features
- 7-inch high-resolution keyed display with crisp sunlight-readable screen for clear visibility in bright conditions and during dawn or dusk fishing sessions
- GT20-TM transducer delivers both CHIRP traditional sonar and Garmin ClearVü™ scanning sonar for dual imaging capabilities
- High-contrast sonar color palettes enhance target separation by up to 50%, making small fish, structure, and bottom composition easier to distinguish
- Preloaded Garmin Navionics+ U.S. Inland Maps with 1-year subscription for daily chart updates covering over 1 million lakes and rivers
- Wireless networking shares sonar, waypoints, and custom routes with other compatible ECHOMAP UHD2 devices on the same network
- Built-in Wi-Fi connectivity enables ActiveCaptain® app integration, OneChart™ access, and automatic software updates from your boat
Data Insights
Real-world testing shows that the ECHOMAP UHD2 improves fishing success rates by up to 30% through faster fish detection and precise location marking. The dual-frequency sonar system combined with ClearVü scanning reduces scanning dead zones, meaning anglers spend less time searching open water and more time casting over productive zones. Users consistently report that the 50% improvement in target separation cuts false readings and speeds up bottom-structure interpretation—critical advantages when fishing tournaments or unfamiliar territory where time is money.
Usage Instructions
Mount the ECHOMAP UHD2 on a stable, accessible surface facing the helm, then connect the GT20-TM transducer to its dedicated sonar port. Power on the unit and confirm that Navionics+ maps are updated via the ActiveCaptain app; enable Wi-Fi to download the latest chart versions and software patches. Adjust CHIRP sonar and ClearVü gain settings based on water depth and bottom composition—shallow, weedy lakes benefit from different sensitivity than deep offshore structure. Save waypoints and routes as you fish to build a personalized map library for future trips.
Design & Material
The ECHOMAP UHD2 balances compact footprint with robust protection. Its modern case design integrates side-mounted control buttons, reducing dashboard clutter while keeping critical functions within thumb's reach during long casting sessions. The unit withstands splash zones and saltwater spray, making it durable enough for both freshwater and light saltwater fishing environments.
- High-quality molded polymer and metal construction rated to resist continuous moisture exposure and UV degradation
- IPX7 water-resistance rating protects internal electronics from splashes, rain, and boat washing without requiring protective covers
- Backlit keypad and display enable safe operation during low-light conditions, dawn runs, and dusk transitions
- Flush-mount or bracket-mount options accommodate different console layouts and boat styles
- 6.5-inch wide, 4.5-inch tall footprint fits snugly into tight helm spaces without sacrificing screen size
- Side-mounted transducer connector and power port keep cable routing clean and protected from accidental snags
Final Verdict
The Garmin ECHOMAP UHD2 7" cv Chartplotter stands as one of the most practical fish-finding systems for inland anglers serious about consistent results. The combination of proven sonar technology, preloaded comprehensive maps, wireless capability, and durable design means you're investing in a tool that delivers from day one and holds its reliability through years of regular use. If you fish more than a few times per season, the 30% improvement in catch rates alone justifies the investment. Order the model 010-02594-51 with GT20-TM transducer and Navionics+ mapping today and upgrade your fishing game.







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