Digital Depth Sounder

  The transducer sends high frequency pulses to the bottom of a body of water where these pulses are reflected back and converted to electrical pulses that are amplified and displayed on the easy-to-read LCD. 7-Digit LCD is backlit for night use. These compact depth sounders transport easily and store DC dry cell battery (included) conveniently – they will even slip into a shirt pocket! Powered by a 9V DC dry cell battery (included), the sounders have a battery life of approximately 500 uses and automatically shut off after 10 seconds.