sidescan sonar with fishing boat

[DAVID HUANG]

DEAR SIR AND MADAM:
THIS IS DAVID HUANG FROM MAINLAND CHINA.
WE DO COMMERCIAL FISHING, I HAVE SEVERAL 18 METERS
FISHING BOAT IN CHINA. I WANT FIRST TO BUY ONE SET SONAR
FOR MY FISHING BOAT. IT CAN DETECT SEA WATER UNDER
80 METERS BOTTOM AND GET VERY CLEAR BOTTOM IMAGES.
SCAN SECTOR CAN DETECT ROUND ONE MILE. CAN YOU HELP ME
TO FIND THIS SIZE SONAR?

WITH BEST REGARDS,
DAVID HUANG
CHINA