Dynamometer, 20 N, transparent, orange

An economical precision spring dynamometer, well suited to student experiments for measuring tensile force. It has a long, clearly legible Newton scale, zero-point correction, protection against over-stretching of the spring and a transparent sleeve through which the coil spring's action can be observed, plus a robust suspension hook, a metal tension rod and a load hook. Measuring range 20 N, graduation 0,2 N, accuracy ±2%, scale length 100 mm; colour orange, D=16 mm, total length approx. 275 mm, mass approx. 38 g.