Vexilar T-Box SP300 Transmitter Box
Best portable sonar solution for tech savvy shore and kayak anglers.
A dedicated replacement transmitter module designed to keep specific sonar systems operational. It provides the necessary signal processing power without the added cost of redundant transducers or mounting hardware.
$110.00
at
Vexilar
Who it's for
- Anglers seeking to use their own mobile devices as fishfinders
- Small boat owners wanting a permanent, space-saving sonar solution
- Remote wilderness fishers operating far from reliable cellular networks
Who should skip it
- Long-session anglers without an onboard USB charging port
- Daytime fishers working in bright, high-glare outdoor environments
- Tech-averse users who prefer standalone, dedicated hardware interfaces
Performance breakdown
Signal Processing Reliability
Core processing hub delivers consistent, uninterrupted sonar data to your display.
System Integration
Designed specifically for SP300 systems, ensuring a seamless, plug-and-play replacement.
Build Durability
Rugged housing withstands the harsh, moisture-heavy conditions of marine environments.
Installation Simplicity
Straightforward swap-out process gets your sonar system back online quickly.
Component Specialization
Focused design eliminates unnecessary features for pure, dedicated sonar performance.
Replacement Value
Cost-effective way to restore functionality without replacing the entire sonar setup.
Key Specs
Model Number
SPT300
Compatibility
SP300 systems only
Know before you buy
Still have a question?
Ask Metto anything about the Vexilar T-Box SP300 Transmitter Box before you decide.