Sensitivity is a very important parameter of strain gauge pressure sensor, sensitivity is the output signal coefficient of the pressure sensor, the unit is mV\/V, common 1mV\/V, 2mV\/V, full scale output of the pressure sensor = working voltage * sensitivity, for example: Operating voltage 5VDC, sensitivity 2mV\/V, full scale output is 5V*2mV\/V=10mV, such as the pressure sensor full scale is 100KG, pressed 100KG, the output is 10mV, pressure 50KG is 5mV.