Thermohygrograph

Thermohygrograph for recording ambient temperature and relative air humidity. High-grade bimetal serves as temperature pick up and a hair, respectively, plastic element serves to picking up humidity. The values determined through both sensors are recorded separately from each other via a pointer mechanism. The case is made of white coated aluminum die casting and removable upper part with crystal-clear Macrolon panoramic hood. All parts have been manufactured from corrosion-resistant materials. Specifications Measuring range : 0 to 100% rel. humidity Accuracy limit : ± 2.5% ( rel. hum.) : ± 1.5% ( C° ) Rotation of drum : 1 x in 1 day or 1 x in 7 days Drum measurements : Diameter 93.3 mm, height 186 mm Recording with fiber pen, writing height : 82 mm each Feed : 1.67 mm, at 24 hours rotation 11.5 mm/ h Accessories : 1 set recording strips ( 100 sheets) , 2 spare fiber pen Dimensions : 280 x 138 x 260 mm Weight : approx. 2.75 kg