HTabsOverview Part number: 1.0400.00.010 Portable, handy, sturdy standard instrument for psychrometric humidity measurements. Used as a control instrument for humidity measuring instruments. The thermometers acc. to DIN 58661 can be calibrated. The thermometer capillary has a blue background and a clearly printed scale. The instrument is equipped with a moistening device and a psychrometer-table. Supplied in a case. Aspiration Psychrometer - 1.0400.00.010.pdf SpecificationMeasurement Parameter: Relative HumiditySpecification: Part number: 1.0400.00.010 TemperatureMeasuring range -10 ... +60 °CAccuracy ±0.2 KResolution 0.2 K GeneralAspirator spring-wound driveMeasuring time ca. 8 min ( 4 ... 2 m/s )Weight 3.5 kg Further InfoDocuments: Aspiration Psychrometer - 1.0400.00.010.pdf