HUMMINBIRD TCR ID-1 FISH FINDER SYSTEM, PICKED UP AT ESTATE AUCTION, NEVER IN 70 YEARS HAVE I HAD SUCH A THING, GOT SOME BATTERIES TO SEE WHAT I COULD FIGURE OUT, MAIN SCREEN UNIT FIRES UP AND SYNCHS WITH THE SENSORS, ON THE TRAILING BOAT YOU HAVE THE PADDLEWHEEL SENSOR, SHOWS UP ON SCREEN WHEN YOU SPIN IT, TEMP SENSOR SHOWS UP ON THE SCREEN, 2~ 455 SENSOR HAVE A SWITCH SELECTOR ON THE BOX, I DONT HAVE WATER FOR SONAR OR WHATEVER, I CAN FEEL AND HEAR A TAPPING COMING FROM THE SENSOR I HAVE SELECTED ON THE BOX, SOLD AS DESCRIBED HERE, AS IS, AS FOUND. NO BATTERIES COME WITH, YOU MUST PROVIDE YOUR OWN. 14 LB TO SHIP.
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