Feature: 1. Accurate Depth Reading: Our portable fish finder utilizes advanced sonar technology to provide precise and reliable depth readings, allowing you to accurately determine the water depth and locate potential fishing spots. (4XAAA battery not included) 2. Real-Time Temperature Display: Equipped with a temperature sensor, this fish finder can accurately measure and display the water temperature in real-time. Knowing the temperature can help you understand the behavior of different fish species and improve your chances of a successful catch. 3. Easy-to-Use and Portable Design: Designed with simplicity in mind, our fish finder features an intuitive interface and user-friendly controls. Its compact and design makes it easy to carry and install on any fishing kayak, boat, or dock. 4. Powerful Sonar Sensor: The included wire sonar sensor transducer delivers powerful and reliable sonar signals, ensuring accurate detection of fish and underwater structures. With its wide coverage range, you can explore larger areas and increase your chances of finding more fish. 5. Versatile Fishing Tool: Whether you're a professional angler or a weekend warrior, our fish finder is an essential tool for improving your fishing experience. Suitable for various fishing environments, such as lakes, rivers, and even offshore fishing, it helps you navigate unfamiliar waters and maximize your fishing success. Material: ABS colour: black Package Contents: 1 x Portable Fish Finder 1 x sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.