H-B Instrument B61503-0100 DURAC Compact Sling Psychrometer; 20/120F

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H-B Instrument B61503-0100 DURAC Compact Sling Features

• RH Accuracy: ±3% RH

• RH Resolution (Percent): 2%

• Temperature Accuracy: ±1.0°F

• Temperature Resolution: 1°

• Wet Bulb: Yes

About H-B Instrument B61503-0100 DURAC Compact Sling

To operate psychrometer, withdraw thermometer halfway out of case, then moisten wick. Holding the case as a handle, swing the psychrometer for two minutes. Read wet and dry bulb temperatures, then reinsert thermometer slide into case. The slide and case form a slide rule for calculating RH. Choose °>F or °>C models. The °>F models are available with either mercury- or spirit-filled thermometers,—use spirit filled model in mercury-free environments. Instructions are included. Pocket-sized—take with you anywhere!