Overview:Beyond display capabilities, this sturdy handheld has been suitably designed for portability and strength. Easy to carry, it’s 37 percent smaller and 38 percent lighter than other professional-grade models. The base unit, able to survive six foot drops, has been modified to adhere to tough military and industry standards including IP67 for waterproofing and MIL STD 810G for extreme operating temperatures (Method 501.5 and 502.5, -22F to 140F).