Technical parameters: 1, ground rod diameter: 30 mm 2, and see great length: 80 mm 3, the handle diameter: 50 mm 4, handle length: 80 mm 5, reference standards: IEC61032:1997 figure 16 Technical parameters: 1, ground rod diameter: 30 mm 2, and see great length: 80 mm 3, the handle diameter: 50 mm 4, handle length: 80 mm 5, reference standards: IEC61032:1997 figure 16 Technical parameters: 1, ground rod diameter: 30 mm 2, and see great length: 80 mm 3, the handle diameter: 50 mm 4, handle length: 80 mm 5, reference standards: IEC61032:1997 figure 16