Showing the humidity percentages of textile materials, namely cotton bails, plait fabrics and wowen fabrics, thread bobbins, warps, etc. to provide highest level of quality and commercial efficiency as well as providing inconsistencies at weight computation.

It is used with a great reliability at agricultural products, grain seed purchases, during fermentation of plants such as tobacco and tea, at feed grain industry and some other areas.

There are also m odels with analogous
and digital indicators.