Vexilar Sp200 Sonarphone T-Box Permanent Installation Pack

["The Vexilar SP200 SonarPhone T‑Box Permanent Installation Pack is a permanently mounted fish‑finding system that turns your smartphone or tablet into a powerful sonar display using your device’s screen and the free SonarPhone app. Designed for easy on‑boat installation with a 12 V power source, this unit broadcasts its own Wi‑Fi signal so you can view depth, fish, structure, and water temperature without needing cell coverage or a standalone fishfinder display."]