This instrument is designed for measuring static strength for all type of automotive seat. A) Static Load Test: At first, preload 4.9N and the value of force and deformation automatically return to zero. After that, start to proceed a cycling test from zero to 980N and to zero. Meanwhile, the curve is automatically drawn; user is allowed to select preferred hold time at the highest load point. B) Repeating Test: At first, preload 490N and the value of force and deformation automatically return to zero. After that, start to proceed a cycling test from zero to 392N and to zero for 10 times. Meanwhile, the test curve is automatically drawn. Next, record the force and deformation data in the 10th; user is allowed to select preferred hold time at the highest load point.