Sling Hygrometer 

Designed for portability (7.5”long×1” diameter) and duel range (high & low temperature) scales for better resolution. Slide rule construction quickly converts temperature to relative humidity.

Thermometers telescope insert into handle for protection when not in use. Built-in water reservoir holds sufficient water for several hours of testing.

 

Specifications 

Measuring Range: -5°C-50°C