Telescopic measuring pole1

In fields such as engineering surveying, building construction, farmland and water conservancy, accurate elevation data serves as the core foundation for project advancement. The benchmark ruler, as a core supporting component for equipment like levels and total stations, has become a trusted measurement partner for countless frontline workers thanks to its stable performance and user-friendly operation.

This benchmark ruler is integrally formed from high-strength aluminum alloy, with an overall weight as low as 1.2kg. A single person can easily hold and operate it, and it will not impose extra burdens even during long-time field operations. The ruler surface is treated with anodized wear resistance, which can not only withstand scratches from outdoor sand and gravel, but also resist fading and deformation after long-term exposure to sunlight and rain. It adapts to extreme operating temperatures ranging from -30℃ to 60℃, maintaining a stable structural state whether in frozen soil construction sites in northern winters or humid fields in southern summers.

In terms of scale design, the benchmark ruler adopts the internationally common red-and-white dual-color reflective scale, with a minimum accuracy of 1mm. The readings remain clear even during long-distance observation, effectively avoiding the reading deviation caused by worn scales on traditional wooden rulers. The retractable section design supports multi-gear adjustment from 2m to 5m. When retracted, it is only 1.1m long, which can be easily placed in the trunk of an engineering vehicle or a toolbag for convenient transportation between sites. Some models are also equipped with a built-in spirit level, allowing operators to quickly adjust the verticality of the ruler. This fundamentally eliminates measurement errors caused by tilted rulers, greatly improving the efficiency of field operations.

From elevation transmission of building foundation pits, slope calibration in highway construction to earthwork calculation in farmland renovation, this benchmark ruler can provide stable and reliable measurement support. It is a practical helper for engineering practitioners to improve operation accuracy and reduce rework costs.