Designed for robotic surveying, the AdirPro 1-Inch Monitoring Mini Prism is outlined with an easily adjustable prism direction in both X and Y axes. Offering an offset of 17mm, it is resistant to water splashes making it ideal for all demanding job sites. In addition, this AdirPro mini prism is available in 1.5-inch size with 27mm offset so construction professionals can choose the best match for monitoring distance. An anchor bolt is also included in the package.