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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
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 GT30-TH Thru-Hull CHIRP ClearVü & SideVü Transducer (010-01961-10)
Introduction
The Garmin GT30-TH Thru-Hull Transducer is engineered to provide superior scanning sonar performance for anglers navigating shallow coastal waters, lakes, and inland waterways. Equipped with Garmin's advanced CHIRP ClearVü and CHIRP SideVü technologies, it produces remarkably detailed images of fish, underwater structures, vegetation, and bottom contours, helping you locate productive fishing areas with confidence.
Featuring a rugged stainless steel stem and fairing block installation, the GT30-TH is designed for vessels with hull deadrise angles of less than 5 degrees. It delivers 500 W of power per sonar element (1,500 W total), providing ClearVü scanning depths of up to 750 feet and SideVü coverage up to 500 feet on both the port and starboard sides. A built-in fast-response temperature sensor supplies accurate water temperature data, while seamless compatibility with the Garmin GCV 10 Scanning Sonar Module ensures reliable, high-performance operation.
Key Features
CHIRP ClearVü Sonar
- High-definition CHIRP ClearVü scanning.
- Exceptional detail directly beneath the boat.
- Clearly identifies fish and underwater structures.
- Excellent bottom and vegetation imaging.
CHIRP SideVü Sonar
- High-resolution SideVü scanning.
- Scans both sides of the vessel simultaneously.
- Detects fish-holding structures with precision.
- Wide underwater coverage for efficient searching.
Powerful Sonar Performance
- 500 W power per sonar element.
- 1,500 W total power output.
- ClearVü depth capability up to 750 ft.
- SideVü coverage up to 500 ft on each side.
High-Frequency CHIRP Technology
- CHIRP operating frequencies of 455/800 kHz.
- Frequency bandwidth of 445–475 kHz and 805–840 kHz.
- Enhanced target separation.
- Sharp and detailed sonar imagery.
Built-In Temperature Sensor
- Fast-response water temperature sensor.
- Provides real-time temperature readings.
- Supports better fishing decisions.
- Integrated directly into the transducer.
Durable Marine Installation
- Stainless steel thru-hull stem.
- Designed for hull deadrise below 5°.
- Includes fairing block for proper alignment.
- Built for long-lasting marine durability.
Garmin Compatibility
- Compatible with Garmin GCV 10 Scanning Sonar Module.
- 12-pin connector.
- Seamless integration with compatible Garmin systems.
- Reliable high-performance operation.
Sonar Performance
The Garmin GT30-TH delivers exceptional scanning sonar performance by combining CHIRP ClearVü and CHIRP SideVü technologies into a single transducer. ClearVü produces highly detailed images directly beneath the vessel, making it easy to distinguish fish, submerged timber, rocks, and bottom structure.
SideVü extends the scanning area to both sides of the boat, allowing anglers to locate fish and structure without passing directly overhead. Combined with high-frequency CHIRP technology and a built-in temperature sensor, the GT30-TH provides valuable environmental data that enhances fishing efficiency and situational awareness.
Usage Instructions
Install the Garmin GT30-TH according to the supplied installation instructions using the included fairing block, isolation plate, bushings, and mounting hardware. The transducer is designed for vessels with hull deadrise angles of less than 5°.
Connect the transducer to a compatible Garmin GCV 10 Scanning Sonar Module using the supplied extension cable. After installation, configure the sonar settings through your compatible Garmin display to optimize ClearVü and SideVü performance for your fishing environment.
Design & Build
The Garmin GT30-TH features a robust stainless steel thru-hull stem engineered for reliable long-term marine performance. Its durable construction is complemented by a fairing block that ensures proper transducer alignment and maximum sonar efficiency. The integrated fast-response temperature sensor and premium installation components provide dependable operation in demanding freshwater and saltwater environments.
Design Highlights
- Stainless steel thru-hull construction
- CHIRP ClearVü scanning sonar
- CHIRP SideVü scanning sonar
- 1,500 W total sonar power
- 500 W per sonar element
- CHIRP 455/800 kHz operation
- ClearVü depth up to 750 ft
- SideVü range up to 500 ft per side
- Built-in fast-response temperature sensor
- Designed for hull deadrise below 5°
- Includes fairing block
- Includes isolation plate and bushings
- 12-pin connector
- Compatible with Garmin GCV 10
- Complete installation hardware included
- Rugged marine-ready construction
Final Verdict
The Garmin GT30-TH Thru-Hull Transducer is an outstanding choice for shallow-water anglers seeking high-definition CHIRP scanning sonar performance. Combining ClearVü and SideVü imaging with powerful 1,500 W output and an integrated temperature sensor, it delivers exceptional underwater visibility and environmental awareness.
With durable stainless steel construction, optimized thru-hull installation, and seamless compatibility with the Garmin GCV 10 Scanning Sonar Module, the GT30-TH provides reliable performance and precise underwater imaging to help anglers locate fish and structure with confidence on every trip.


