CPT-165A magnetic compass is a desktop liquid magnetic compass. It can be used as a rudder compass for small and medium-sized ships. The technical performance indicators of the A-grade magnetic compass are designed and manufactured in accordance with the national standard GB/T 14108-93 "General Technical Conditions for Marine A-grade Magnetic Compass". It has the advantages of beautiful appearance, high precision, convenient calibration, stable performance, and clear lighting. It is an essential navigational aid for small and medium-sized ships.