4. The item can only reveal you where the fish are. It can not reveal you how big the fish are, but you might change the Sensitivity setting.
Detect and display water depth, approximate fish location, short & tall weeds, sand, and rocks on seabed. 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.
Round transducer with 25 ft cable and removable transducer float. Can be used for fishing off the dock, on a boat, and ice fishing.
Various features settings: 5 user selectable sensitivity; battery save mode; backlight mode; fish alarm; unit of measure. Water depth shows by meters/feet
Attention: 1. It will turn off automatically if the depth display reads "---" continuously for 5 minutes. 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. 3. It can not be used to detect bait fish(motionless) or fish that is smaller than 10cm. 4. When use this fish finder on moving boat, please make sure the moving speed is slowly (lower than 5 mph).
Warranty: This device is covered by a 1 Year Warranty. Any questions before or after purchase, please feel free to contact customer service representative (response within 24 hours every day online).