The Tengfei QX-980B (often listed as the YT-QX980-B) is a high-performance liquid magnetic compass designed specifically for yachts, lifeboats, and small vessels under 24 meters in length. It is engineered to meet the ISO 14227-2001 small craft standards and is widely used for both heading indication and orientation.

• Optical Magnification: While the actual dial diameter is 65 mm, it features a unique globose (spherical) cover that acts as a magnifier, enlarging the visual display to 98 mm for easier reading from a distance.

• Precision Magnets: Utilizes a new generation of high-energy pointing magnets and correction magnets, which significantly enhance the sensitivity and stability of the card.

• Correction Energy: Includes a built-in semicircular self-difference correction system (0° to 30°), allowing for fine-tuning to counteract local magnetic interference on the vessel.

• Durability: The housing is typically made of high-strength plastic or corrosion-resistant alloy, designed to withstand the UV exposure and salt-spray typical of open-cockpit yachts.