CPT-130A Magnetic Compass is a sort of table model liquid magnetic compass . The compass is a magnetic compass class B and it is designed and manufactured in accordance with the national standard GB/T 10104-1995 ( General Technical Terms of Marine Magnetic Compass Class B ) . The product has the advantages of simple structure 、complete function 、convenient correcting difference 、 accurate direction 、stabilization and reliable .The magnetic compass is suitable for the large and middle motorized fishing boats and small steel vessels acting as steering compass.