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Bacharach™ Sling Psychrometer

No need to use tables or make calculations with this sling psychrometer

Manufacturer:  Bacharach™ 127012

Catalog No. 23-284816

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Thermometer holder telescopes into swivel handle, which has slide rule that lets you read relative humidity from wet-and dry-bulb temperatures.

  • Built-in slide rule has wet-bulb and dry-bulb scales of 30° to 70°F and 50° to 110°F, and RH scale of 10 to 100%
  • Matched 25° to 120°F mercury thermometers with 1°F scale division are mounted together in strong plastic frame with built-in water reservoir to keep wick wet
  • Thermometers have magnifying front, deeply etched numerals, and thin bulbs for fast thermal response

Order Info

Telescoped instrument is 1 dia. × 7.5 in. L (2.5 × 19cm); fits nicely in pocket. Replacement wicks (11-664-4) and mercury thermometer (11-664-2) available separately.



For measurement of comfort condition in air conditioned environments, hospital operating rooms, storage areas and laboratories, tests in industrial atmospheres where high or low humidity may be critical in manufacturing processes
19 cm
-3.88°C to +48.88°C
Instructions, slide rule calculator which correlates wet and dry bulb thermometer indications for direct reading of relative humidity
7.5 in.
25°F to 120°F
Sling Psychrometer
Product Certifications


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