These center hole load cells are for measuring loads on VSL anchors, etc. The center hole diameter is compatible with the VSL method. Rated Capacity: 500 kN to 2 MN Diameter: 188 mm (500 kN), 223.5 mm (1 MN), 263.5 mm (1500 kN, 2 MN) Nonlinearity: Within ±0.8% RO