Features: <br>Sensitive: The sensitivity can be adjusted freely according to the depth of water. <br>Detect and display water depth, approximate fish location, fish size, short & tall weeds, sand & rocks on seabed. Setting can be saved when turned off. <br>Apply to lake, river, sea and other fishing environment. Depth range from 1M to 100m. NOTE: The depth is measured from the sonar sensor, not the float. <br>Round transducer with cable and removable transducer float. Can be used for fishing off the dock, on a boat, and ice fishing. <br>Various features settings: 5 user selectable sensitivity; battery save mode; backlight mode; fish alarm; unit of measure. Water depth shows by meters/feet. <br> <br> <br>Specifications: <br>Condition:100% Brand New <br>Color: As shown in the picture <br>Measure Units: Meters / Feet <br>Display: LCD <br>Backlighting: LED <br>4.6cm diameter Round transducer sensor <br>Depth Range : maximum: 100m (328ft) ; Minimum: 0.9m (3ft) <br>Sensor Beam Angle: 45 degrees <br>Display the nature or circumstance of bottom of Sea (i.e. grass, rock and sand) <br>Operating Temperature is from -10°C to 45°C (14°F to 113°F) <br>Battery: Uses 4*AAA batteries (Not included) <br> <br> <br>How to use the Sonar Sensor: <br>1. Toss the sensor and float into the water; <br>2. Attach the Side-Scan Adapter to the boat hull using the mounting tabs; <br>3. Attach the sensor to a handle, lower the sensor into the water. <br> <br>Package List: <br>1*Fish Finder <br>1*Instruction Manual <br>1*Lanyard <br>1*Fixing Screw <br>1*Fixing Frame <br>1*Sensor <br> <br> <br> <br>Note: <br>1. It will turn off automatically if the depth display reads "---" continuously for 5 minutes. <br>2. The transmitter is waterproof, but the receiver (unit with screen) is not waterproof, so please do not submerge or spray the fish finder screen with water. <br>3. It can not be used to detect bait fish(motionless) or fish that is smaller than 10cm. <br>4. When use this fish finder on moving boat, please make sure the moving speed is slowly (lower than 5 mph). <br>5. Extremely cold weather will impact the performance of the product. It is suggested that you keep the unit in temperatures above 0 degrees during operation. <br>6. Strong waves, suspended matter and muddy water,will affect the performance.<br>1、Sensitive: The sensitivity can be adjusted freely according to the depth of water. <br>2、Detect and display water depth, approximate fish location, fish size, short & tall weeds, sand & rocks on seabed. Setting can be saved when turned off. <br>3、Apply to lake, river, sea and other fishing environment. Depth range from 1M to 100m. NOTE: The depth is measured from the sonar sensor, not the float. <br>4、Round transducer with 25 ft cable and removable transducer float. Can be used for fishing off the dock, on a boat, and ice fishing. <br>5、Various features settings: 5 user selectable sensitivity; battery save mode; backlight mode; fish alarm; unit of measure. Water depth shows by meters/feet.