Surveyors need to rely on some precision instruments when performing various surveying work. The following are five essential surveying instruments that play an important role in various engineering and scientific research.
🌐Theodolite
Theodolite is an ancient and classic surveying instrument that determines the geographical location of a place by observing the position of celestial bodies. It is widely used in fields such as geographical surveying, astronomical surveying, and geological exploration.
📏 Leveling instrument
The leveling instrument is used to measure the elevation of the surface of the earth, and can measure the height difference from the survey station to the ground reference surface. Combined with theodolite and total station, it can achieve elevation measurement of buildings, bridges and other projects.
📐Total station
The total station is a modern electronic instrument that can measure angles and distances, and determine the coordinate values of the target point in the plane and height direction by calculation. It is widely used in engineering surveying fields such as buildings, bridges, and roads.
📏Distance meter
The distance meter uses infrared, laser or ultrasonic technology to measure the distance to the target. Distance measuring tools have the characteristics of fast speed, high accuracy and wide measuring range, and is suitable for fields such as buildings, geological exploration and port terminal layout. HOLO laser distance meters are supplied with wide measuring range from 30 meters to 120 meters.

📊Depth Sounder
A depth sounder is an electronic instrument used to measure the depth of water bodies such as rivers, ports and lakes. It has the advantages of high accuracy and ease of use, and is an essential tool in fields such as marine exploration and underwater welding of steel structures.
With the development of science and technology, new electronic instruments have gradually replaced some traditional instruments, but these classic instruments still play an irreplaceable role in measurement work.