The 225-520-A Pocket Sling Psychrometer is only 7.5 inches long and comes with a pocket-sized carrying case. Two 5.5-inch red, liquid-filled thermometers are attached to an aluminum back with a handle for whirling. The handle folds down when not in use. Instrument range is either +20 °F to +110 °F or -5 °C to +45 °C. Humidity tables are provided. Replacement wicks are available.
Specifications
- Range:
- 225-520: +20 °F to +110 °F (1° graduations)
- 225-521: -5 °C to +45 °C (1° graduations)
- Size: 7.5″ L x 1″ W (190 mm x 25 mm)
- Weight/shipping: 0.3 lb/1 lb (0.1 kg/0.5 kg)
Downloads
- 225-520 Data Sheet
- 225-520 Manual – available on request







