Human hand is capable of performing various accurate motions as it is controlled by several intrinsic and extrinsic muscles simultaneously. Due to the complexity of hand physiology, it is especially challenging to achieve an efficient hand exoskeleton control for patients with affected motor functions. A preliminary investigation demonstrated a technique to identify common synaptic input for various finger pinching motions. It is, therefore, possible to extend the findings towards an efficient control algorithm, even with patients with neurological diseases. Several devices have been developed in the past with the aim to measure and evaluate finger forces, but an adjustable and portable device providing individual digit force recordings in both direction (flexion and extension) is still missing.