Easy to use portable fish finder: This device provides realtime data on fish location and water conditions, helping you plan your approach and enjoy your time outdoors without distraction. Multifunctional tool: Displays sea depth, fish depth scale, and water temperature, making it a practical tool for any angler aiming for success on the water. Accurate sonar readings: Maximum depth capability of 36 m (120 ft) and a sonar frequency of 125 kHz, delivering precise readings to help you locate fish efficiently. Durable and reliable: Built from PP material, designed to withstand various weather conditions while maintaining performance in temperatures from 10°C to 60°C. Use scenario: On a boat or shore fishing trip in coastal waters, use to locate schools of fish before casting. Use scenario: In freshwater lakes or rivers, monitor depth and water temperature to choose the right spots and improve lure or bait selection. Use scenario: During multiday camping or travel fishing, rely on rugged construction and wide temperature range for dependable performance in changing weather.