CPT-190 Table Model Magnetic Compass CPT-190 Magnetic Compass is a sort of table model liquid magnetic compass . It is used for the middle and small vessels acting as steering compass . The compass is a magnetic compass class A and it is designed and manufactured on the basis of the national standard GB/T 14108-93 ( General Technical Terms of Marine Magnetic Compass Class A ),its technical performance index are completely in accordance with the national standard. The product has the advantages of beautiful outline,high precision,convenient correcting difference,steady performance and legible lighting etc. It is the essential navigation instrument for the middle and small vessels.