VAPORPAK® Portable Humidity Generator The VAPORPAK® Model H-31 humidity calibrator is intended for rapid determination of a field sensor temperature/humidity accuracy. It can also be used for sensor linearity test as well as probe drift studies. Specifications: • RH: 11 – 97 %RH , ± 1.0%RH average, ± 1.5%RH max • RH stability: ± 0.2%RH • Temperature: 20 – 32°C ± 0.5°C • Set point resolution 0.1%RH, 0.1°C • Size 10” W x 10” D x 3.75” H inches (255 mm x 255 mm x 95 mm) • Port Size: 1” diameter x 4.5” depth (25 mm x 110 mm) • Weight: 4.6 lbs (2.1 kg) • Power: Internal NiMH (4hours), 6 VDC @ 5 Watts max. • Temperature range: operation, 5 – 40°C; storage, 0 – 50°C • Expendables: Desiccant pack and water reservoir (1-2 weeks/charge) • Protective soft cover/case included • AC power adapter-charger included PO Box 19498, Boulder, CO 80308 main: 303.442.6055 fax: 303.443.2986 1.800.HUMIDITY WWW.HYGROMETERS.COM