Finder Depth Finder Sonar Alarm Marine Fishfinder Navigation Tools US detaila: This product is designed for amateur and fishermen alike, to find out the location of fish and depth of water. The unit can be used in ocean, river or and is fantastic for detecting schools of fish in any particular area. Using amazing and technology, this portable fish finder is the ideal tool to bring the fish to you! Main Features: Detect and display grass,, sand, and on the seabed Get the approximate location of fish and the depth of water Round transducer sensor with 7.5m cable, 45 degrees beam angle With fish depth scale and fish alarm User selectable meter or feet readings The range of depth readout from 0.7 meters up to 100 meters Display bottom or grass Removable float Specifications: Display: TN / ANTI-UV LCD with LED back lighting Depth range: 0.7m to 100m ( 2ft to 328ft ) Sensor beam angle: 90degrees Operating temperature: -20 to 70 ( -4F to 158F ) Powered by: 4 x AAA batteries ( not included ) How to use the Sonar Sensor: 1. Toss the sensor and float into the water. 2. Attach the Side-Scan Adapter to the hull using the mounting tabs. 3. Attach the sensor to a handle, lower the sensor into the water. Can mount the sonar with the following. Display the nature or circumstance of the bottom of the Sea (i.e. grass,, and sand) A. Fix it to the hull B. Use a float on the cable to mount the sonar inside the water Fix it on a pole and push it into the desirable position inside the water D. Cut a hole on the ice and place the sonar under the water Attention: 1. It will turn off automatically if the depth display reads "---" continuously for 5 minutes. 2. The transmitter is, but the receiver (unit with screen) is not , so please do not submerge or spray the fish finder screen with water. 3. It can not be used to detect bait fish(motionless) or fish that is smaller than 10cm. 4. When using this fish finder on moving, please make sure the moving speed is slowly (lower than 5 mph). 5. The product can show you where the fish are. It can not show you how big the fish are, but you could adjust the Sensitivity setting. When the Sensitivity is high, it will show you both big fish and small fish; when low, it will show you the big fish. 6. Extremely cold weather will the performance of the product. It is suggested that you keep the unit in temperatures above 0 degrees during . 7. Strong waves, suspended matter, and muddy water, will affect the performance. 8. The fish finder needs to be used in natural waters with the water depth of more than 1 meter. 9. Please do not test it in places such as fish tank, bathtub and swimming pool. Due to the of cement or glass, the sonar is vulnerable to the influence of external, resulting in an inaccurate display. Package Contents: 1. detector 2. probe 3. hanging rope 4. Battery 5. signal receiver