Description: 【Precision Engineere】: This Data Collector Clamp for RTK Measurements is meticulously designed to provide accurate and reliable data collection for your RTK measurements. 【Easy Installation】: The pole clamp is extremely user friendly with an easy installation process. This data collector stand with can help you to recognize the direction and make your work more efficient. 【Sturdy Construction】: Made with quality materials, this Data Collector Clamp is built to withstand harsh field conditions. 【Compact And Portable】: This data collector stand is small in size and light in weight, which makes it very convenient to carry around and use. 【Wide Application】: This data collector bracket is widely used for highway surveying, engineering surveying and building construction. Size Chart: Clamp Distance: TC 4 and TC 8 9: 7.7cm-8.2cm/3.03inch-3.23inch TC 8 9: 8.32cm/3.28inch TC 4: 3.2cm/1.26inch TC 2 and TC 6: 7cm-9.4cm/2.76inch-3.70inch TC 6: 7.2cm-9.2cm/2.83inch-3.62inch TC 2: 2cm-3.8cm/0.79inch-1.50inch TC 2 and TC 8 3E: 8.64cm/3.40inch TC 8 3E: 8.64cm/3.40inch TC 2 and T81: 5.8cm-10cm/2.28inch-3.94inch T81: 5.8cm-10cm/2.28inch-3.94inch Package Includes: 1pcs Data Collector Clamp Note: Please allow slightly errors 1-2cm differences due to manual measurement.