Thanks to a very precise torsion spring, this dynamometer shows the correct value in all pull directions, not only vertically; 
due to the large scale, the displayed value can be seen from a distance,
making this device is highly recommendable as a demonstration measuring device; 
torsion spring dynamometer with a rotatable pulley with a deep notch; 
easily visible red metal pointer; 
thanks to the rotatable metal scale the zero point can be quickly and easily adjusted; 
hooked cord for suspending objects;
with support rod D = 10 mm, L = 30 mm;
measuring accuracy: approx. ±3%;
digit height on scale: 15 mm;
diameter of scale: 200 mm