徕卡NA2高精度自动安平水准仪是一款专为测量、工程和工业技术领域设计的精密仪器。它以其卓越的性能和广泛的适用性，成为众多测量任务的理想选择。

该水准仪具备高精度和专业化的测量能力，每公里往返测中误差仅为0.7mm，配备GPM3平行玻璃板测微器时，精度可进一步提升至0.3mm。其精密补偿器能够自动安平视准线，确保测量工作的快捷高效。此外，NA2采用无限位螺旋设计，操作更加方便，并结合粗、精调焦技术，使目标成像清晰准确。徕卡顶级的光学器件能够有效减少人眼疲劳，即使在长时间使用下也能保持测量的准确性和稳定性。

在设计上，NA2采用了防霉、防震、防水的结构，使其能够在各种恶劣的环境条件下稳定工作。其操作温度范围为-20℃至+50℃，储藏温度范围为-40℃至+70℃，这使得它能够适应从极寒到极热的各种气候条件。

在应用方面，NA2的用途极为广泛。它可用于各等级水准测量、高精度水准测量、房屋沉降观测，以及公路、铁路、管道、隧道等常规高程测量和放样。此外，它还可用于控制测量、视距测量和形变监测，几乎涵盖了所有需要高精度测量的领域。

The Leica NA2 high-precision automatic leveling level is a precision instrument designed for measurement, engineering, and industrial technology fields. With its outstanding performance and wide range of applications, it has become an ideal choice for a variety of measurement tasks.

The NA2 boasts high-precision and specialized measurement capabilities, with a mean error of only 0.7mm for round-trip measurements per kilometer. When equipped with the GPM3 parallel glass plate micrometer, the precision can be further enhanced to 0.3mm. Its precision compensator can automatically level the line of sight, ensuring efficient and rapid measurement work. Moreover, the NA2 features an unlimited spiral design, which makes operation more convenient. Combined with coarse and fine focusing techniques, it provides clear and accurate target imaging. Leica s top-tier optical components effectively reduce eye fatigue, maintaining measurement accuracy and stability even with prolonged use.

In terms of design, the NA2 features a mold-proof, shock-resistant, and waterproof structure, enabling it to operate stably under various harsh environmental conditions. Its operating temperature range is -20℃ to +50℃, and the storage temperature range is -40℃ to +70℃, allowing it to adapt to climates ranging from extremely cold to extremely hot.

Regarding applications, the NA2 is extremely versatile. It can be used for all levels of leveling measurements, high-precision leveling measurements, and building settlement observations, as well as for conventional elevation measurements and layout in highways, railways, pipelines, tunnels. Additionally, it is suitable for control surveys, stadia surveys, and deformation monitoring, covering almost all fields that require high-precision measurements.