Contech Contech Spring tester is used for checking the spring in tension & compression modes. * Measures compression (push) or tension (pull) forces.* Operates on electrical power/battery.* RS232 serial interface for computer connection. * Capacity : upto 30Kgf * Units : Kg-cm/N-m * Universal, compression & tension type. * Accuracy : + 0.5% * Accessories : compression pad or tension hooks. * Peak hold function. * Bright LED display.* Display : Force & deflection. * Calibration facility (Optional).* Force applying through rotating wheel. * Storage facility for 100 data.