Tide Meter Type DFT-3 Oceanographical Observation Navigation Tide Meter Type DFT-3 Oceanographical Observation
Wave Height Meter Air Exposure Type US-500 For Oceanography Navigation Wave Height Meter Air Exposure Type US-500 For Oceanography
Doppler Current Graph Type KDG-300 For Fishery Navigation Doppler Current Graph Type KDG-300 For Fishery
Fish Finder Echo Sounder Type KCE-300Fish Finder Echo Sounder Type KCE-300 Navigation Fish Finder Echo Sounder Type KCE-300
Scanning sonar type KCS-3000KCS-3500 for fishery Navigation Scanning sonar type KCS-3000/KCS-3500 for fishery