Vexilar SP300 SonarPhone T-Box Portable Installation Pack

The Vexilar SonarPhone SP300 is a portable WiFi fishfinder package that sends sonar data to a smartphone or tablet through the free SonarPhone app. The bundle includes the T-BOX transducer, 12V battery, charger, and carry case, so it can be used from a small boat, dock, kayak, or ice-fishing location without installing a fixed display.

The single-beam 200kHz sonar reaches up to 240 feet, while the dedicated WiFi hotspot provides up to 300 feet of range to the connected device. The main advantage over a basic handheld fishfinder is screen flexibility: use the phone or tablet already in your kit. The trade-off is dependence on that device and app. This package is portable sonar, not a chartplotter, NMEA 2000 instrument, or deep-water sounder.

Who Is This For?

This portable WiFi fishfinder suits kayak anglers, small-boat fishermen, dock users, and ice fishermen who prefer a phone or tablet display. It is not ideal for offshore navigation, a permanent helm, or buyers wanting charts, GPS, or network sonar integration.

Warranty & Support

Vexilar provides a 1-year limited warranty. The supplied specifications do not state warranty exclusions or service procedures.

The SP300 is the flexible portable fishfinder for anglers who already carry a phone or tablet and want a larger screen than a handheld unit can provide. Its trade-off is app and WiFi dependence, plus single-beam sonar. Choose it for easy temporary setups, not for a permanent marine electronics network or advanced scanning sonar.