| Product Description | - 555 channels - Full galaxy, full frequency - RTK accuracy of 1cm, covering the whole province with differential signal services -  L-Band Broadband, Three Precision Differential Signal Services - Multiple communication interfaces: WiFi, RS232/RS422, Internet - Easy to install - Easy to integrate - ALIGN patented azimuth pointing technology - 16GB built-in memory - SPAN patented positioning and orientation technology (IMU integration technology) - Single unit dual antenna - Can be used as a base station or as a mobile station  | Product Information | Please refer to Figure 2 and Figure 3 of the product. | Shopping Guidelines| Since this product is a high-end product, if you want to buy it, please click "Contact Us" at the top of the page and leave a message, we will contact you as soon as possible. -------------------------------------------------------- Catalog download: https://bit.ly/3uD7YoC Catalog download: https://bit.ly/3uD7YoC