Applications: This waterproof digital compass is suitable for cars, boats, boats, caravans and trucks. Built-in precision compensator for easy adjustment of deviations for more precise measured values. It is an adjustable magnetic declination compass for a multi-function vehicle.Applications: This waterproof digital compass is suitable for cars, boats, boats, caravans and trucks. Built-in precision compensator for easy adjustment of deviations for more precise measured values. It is an adjustable magnetic declination compass for a multi-function vehicle.Applications: This waterproof digital compass is suitable for cars, boats, boats, caravans and trucks. Built-in precision compensator for easy adjustment of deviations for more precise measured values. It is an adjustable magnetic declination compass for a multi-function vehicle.High quality: The marine digital compass is made of ABS. This compass is waterproof and corrosion resistant and is ideal for marine or maritime vehicles.Responsive: The magnetic declination adjustment pad has fast response speed, high sensitivity, and is balanced separately. The precision reading is displayed.Portable: The compact size is only 8 x 7.2cm, and the bottom diameter is 6cm. This compass is very portable and easy to set up or use.Easy installation: Navigation bracket The installation compass is a pedestal mounted compass that can be mounted on the bridge to achieve the correct viewing angle of the compass for steering control.