Universal Compatibility: This rugged survey pole clamp features an adjustable cradle for ipad mini, tablet PCs and handheld data collectors ranging from 4.9 to 5.9 inches (12.5 - 15cm) in width, ensuring a snug and secure hold during field operations. Built - in Compass: Equipped with an integrated compass, the pole claw enables effortless orientation and direction finding, significantly boosting efficiency in various outdoor environments and complex survey tasks. Heavy - Duty Aluminum Construction: Crafted from high - grade aluminum metal, the 450g (0.98lb) clamp offers superior durability and corrosion resistance, making it ideal for long - term use in demanding field conditions. 360° Rotating & Angle - Adjustable Design: The 360 - degree rotating mechanism and adjustable angle feature allow for flexible positioning, ensuring optimal visibility and ease of access. Quick and easy mounting and dismounting streamline your workflow. Enhanced Field Productivity: Whether you're conducting land surveys, topographical mapping, or other fieldwork, this versatile pole mount clamp provides a stable platform, minimizing device movement and helping you focus on accurate data collection