100 mm. Shipwheel Dial Precision Brass Hygrometer

 Beautiful and easy to read dial shows Relative Humidity from 0 to 100% in 1% divisions. It has a ring for suspension and a recalibration screw. An accurate Relative Humidity Indicator is necessary to assess and if necessary to influence the moisture content of the environment of persons, products, and materials. Great humidor and nautical accessory. Our precision Hygrometer combines accuracy and stability with reasonable cost. It may be used safely in temperatures of 32 to 200°F.