Item Type: Fish Finder Material: Plastic Color: As shown in the picture Weight: Approx.549g/19.4oz Display: 2inch TN/ANTI-UV LCD Backlight: White LED Depth Capability: 328feet(100m) Power Supply: 4 x AAA alkaline batteries (not included) Waterproof Design: Level-4 (spray-water-proof) Show water depth, fish location, and bottom grass & rock User selectable sensitivity,depth units, and fish alarm setting Operating Temperature: -4 to 158(-20 to 70) Package List 1 x Fish Finder Host(Battery Not Included) 1 x Transducer(Transducer+Floating Foam+Cable) 1 x Screw 1 x Lanyard 1 x Instruction Manual 1. Kindly remind that it has only wired mode, and you cannot match the sensor and monitor randomly.2. Use fish finder in smooth and hard place (like water tank, swimming pool, water bucket, or fish pond) will cause repeatedly sonar reception, or the the detection can be inaccurate. Please use fish finder in outdoor deep water.3. The monitor cannot display the size of the fish. 1This portable fish finders detects and shows fish location with water depth, short and tall weeds, sand and rocks. 2The color LCD display of the fish finder is visible under sunshine. Backlight enable the fishing sonar for night fishing. 3Five assistant settings are available on this portable fish finders. Adjustable sensitivity, battery save mode, backlight mode, fish and fish school alarm and battery indicator. 4The portable fish finders works with wired transducer with a 25ft cable wire. The depth unit can be switched from M to FT if long press enter button for 5 seconds. 5The detecting depth range of the fishing sonar is from 3ft(1m) to 328ft (100m) with 45detecting degree. 6This portable depth finder uses 4 x AAA batteries(Not included). Normally this fish finders for kayaks can continue working for 45hours with new batteries. 7Multifunction, you can use this portable depth finder for various fishing occasion like boat fishing, kayak fishing, sea fishing, ice fishing and so on.