The Type 97 compass instrument comprises an azimuth-measuring mechanism, a distance-estimation device, an elevation-angle-measuring mechanism, a range-measuring mechanism, and a coordinate scale, among other components. It is capable of determining azimuth, distance, elevation angle, map distance, coordinates, and even drawing simple maps. The instrument is coated with luminous markers for use during nighttime operations.

The Type 65 compass is a simple surveying instrument used to determine azimuth, distance, horizontal alignment, slope (pitch angle), elevation, march time, speed, and to produce basic maps. To facilitate nighttime use, luminous paint is applied to its various components.

This instrument determines the azimuth of a target by reading the magnetic needle against a graduated dial. In addition, it is equipped with a plumb-bob-type clinometer; when used in conjunction with the slope-angle scale on the sighting telescope, it can measure various slope angles of the target. The pocket theodolite is primarily used for measuring geological attitudes—namely strike, dip direction, and dip angle—as well as for preliminary topographic surveys, including determining position (i.e., intersection points), measuring slope angles, and establishing horizontal planes; it can also be used to measure verticality and to produce topographic maps. The front face of the instrument body is fitted with a gear shaft for adjusting the magnetic declination. A 60-mm scale is engraved on the side of the instrument body for drafting purposes. This instrument features a compact structure, small size, light weight, portability, simple operation, reliable accuracy, and stable performance.

The DLD-360 forest fire observation and positioning instrument is primarily used in forest fire lookout towers to measure azimuth, distance, elevation difference, horizontal angle, and slope angle. It is also suitable for general surveying applications such as agricultural water conservancy, land planning, and topographic mapping, as well as for emergency location alerts in densely populated areas—such as tourist attractions—where outdoor first-aid monitoring is required.