Diamond grade reflective tape 30mmx30mm paste prism paper reflector for total stations Using diamond-grade materials, multi-angle reflection, and accurate measurement. Waterproof and wear-resistant, clear lines Pressure-sensitive adhesive back, strong stickiness, can adhere to almost any surface, used instead of a prism. Widely used in construction surveying and monitoring, such as subway engineering, tunnel engineering, bridge engineering, building construction, ship survey, etc. Survey Accuracy: Standard measurement mode: 2mm +2 ppm; Fast measurement mode: 5 mm +2 ppm. Note: According to different instruments and different weather, and the size of the reflector, the measurement distance will be different.