... 4. One year Warranty 5. Test torsional spring Function:ANH series digital torsion spring tester is a kind of intelligent multi- ... functional measuring instrument used for testing and inspection of torsion spring.With simple operation, high precision, easy to carry, complete ... 4. Three kinds of parameters show (Torque value, Rotating angle, Spring stiffness)5. Three units can be switched (N·m, kgf ...