When measuring, the correct force is applied to the outer side of the strain E-shaped beam portion of the sensor (i.e., a strain gauge affixed to the intermediate, adhesive coating with white beam arms) and the outer edges to form a shear force in the opposite direction, i.e., middle strain beam bending necessary changes can occur under stress, strain beam side by another force should not be a barrier.

The sensor is a group inside the half-bridge strain gauge, you can use the following three:

1, the use of a sensor with an external resistor full bridge measurement range for a sensor range: 50kg. Higher requirements for external resistor.
2, the use of only two full-bridge sensors measuring range for the range of the two sensors and: 50kgx2 = 100kg
3, the use of four full-bridge sensors measuring range for the range of four sensors and: 50kgx4 = 200kg