<b>Features: </b><br> Sonar beam: 200KHz sonar beam with stable signal, effectively prevent signal disturbance.<br> Fish alarm: Allow you to instantly capture the fish without watching the float for a long time.<br> Selectable sensitivity: Easy to select the information of fish according to your different needs.<br> Powerful functions: Battery save mode, Fish depth scale and fish size distinguish, Parameter setting memory<br> Underwater structure displays: Deliver the information and environment of beneath the surface and help identify fish targets.<br> <br> <b>How to use the Sonar Sensor: </b><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> <b>Attention: </b><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><br> <b>Specification :</b><br> 1. Measure Units: Meters / Feet<br> 2. Display: LCD <br> 3. Backlighting: LED<br> 4. Depth Range : Max: 100m (328ft) ; Min: 1m (3ft)<br> 5. Sensor Beam Angle: 45 degrees<br> 6. Operating Temperature is from -20°C to 70°C (-4°F to 158°F)<br> 7. Uses 4 x AAA batteries (not included)<br><br> <b>Package Included :</b><br> 1*Fish Finder Set<br>