NK series of pointer force gauge (pull force gauge) are portable testing instruments of easy operation, high precision, easy portability, peak value maintenance, and simultaneous display of two scales. The new substitutes of old gauge, such as pull force load testing, pull and push force testing and destructive testing, are also widely used in high-voltage and low-voltage electric appliance, electronics, hardware lock-making, automobile accessories, lighters and igniting devices, pen-making, light industry, constructions, textiles, mechanical engineering, and IT field.