Portable Fish Depth Finder, Multifunctional 5 Level Sensitivity Adjustment Sonar Sensor Fish Finder for Husband for Ice Fishing for Kayak Specification: Item Type: Fish Finder Material: ABS Batteries: 4 x AAA Batteries not included Display: TN, ANTI UV LCD Detector Cord Length: Approx. 7.62m / 25ft Backlight: High Gloss LED Units Of Measurement: Feet and Meters Sensor Beam Angle: 45 Degree Maximum Depth Range: 100M/328Feet Minimum Depth Range: 0.6M/2.0Feet Operating Temperature: -10?C to 70?C Advantage: This portable fish finder is suitable for ice fishing, kayak fishing, shore fishing and sea fishing. It is one of the best fishing kayak accessories for your friends or family. It detects and displays water depth, approximate location of fish, weeds and rocks on the seabed. They will be amazed at how many fish this fish finder can catch. Package List: 1 x Display Battery Not Included 1 x Sonar Sensor 1 x Probe Holder 1 x Fixing Screw 1 x Lanyard 1 x Manual Sonar Sensor: Fish finder sonar sensor can be attached to the hull of a kayak or boat to learn about changes in water depth as you pass by. When the sensor is fully immersed in water, the water depth detection range is between 2ft 0.6m and 328ft 100m.