The SSY-1 handheld level (hereafter referred to as the “hand level”) is a simple surveying instrument that can roughly measure the elevation difference and inclination angle (or slope) between two points on the ground. The instrument is lightweight and compact, making it extremely convenient for field measurements and portability. It is suitable for highway and topographic surveys as well as cross-section measurements. In small-scale agricultural water conservancy projects, it can be used for site reconnaissance, preliminary surveys, and the measurement of terraced fields, land leveling, and small irrigation channels.

The JG-1 curve protractor is a miniature forestry measuring instrument primarily used to determine the basal area per hectare of standing trees in a forest stand. It features a novel, compact design, lightweight construction, ease of use, and automatic leveling capability.

This product is a surveying instrument designed for use in mining and tunnel excavation, primarily to measure the slope angles of mine roadways and retreat mining faces as well as the orientation of anchor bolt inclinations. It is suitable for geological exploration and the extraction operations in coal mines and non-ferrous metal mines. Key features include low cost, safe and convenient operation, and high measurement accuracy.

The DQL-10A altimeter compass combines two functions in one: slope/altitude measurement and azimuth determination. It consists of a liquid-damped compass and an angle-measuring device, offering convenient operation. Its robust aluminum housing is impact-resistant, waterproof, and corrosion-proof. This high-quality, high-precision instrument delivers fast, accurate measurements and can be operated with one hand.

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