NHS-20E is also a high-performance, long-life macromolecular humidity sensor. The impedance of NHS-20 is one order of magnitude higher than NHS-12E, so its accuracy is greatly superior to NHS-12E in the high humidity field.

NHS-12E is a high-performance, long-service life macromolecular humidity sensor. High impedance will not dramatically occur to this kind of sensor even in low-humidity fields, and high-precision detection can be carried out in the broad range of humidity.