Linearity is the degree of linearity that describes the output voltage of the sensor varies with temperature. In fact, it is the maximum deviation of the sensor output voltage from the ideal fit line over the operating temperature range. In general, the typical linearity is ±0.5%, and it is clear that the linearity of the sensor is higher (the smaller the value). The simpler the design of the meter, the more linear processing is not required at the input stage of the meter.