The depth display seems to be working. There are scratches and signs of use. Only the nylon thread of the bobbin is wound. I believe it's a DAIWA Tanacom Sensor 500, but it's uncertain because the display is off. However, you can faintly see "500". A family member used it, but it's been stored in a warehouse for a long time, so it's uncertain if it works properly. As shown in photo 5, some parts may be missing. As described above, I'm selling it as a junk item.