Product code: Vintage Weksler Pocket Sling Psychrometer Wet Bulb Thermometer outlet Humidity Calculator
Two 5 1/2” mercury filled lens front thermometers attached outlet to metal back with handle for whirling.
Handle folds out of way when not in use.
Supplied with wick and pocket case.
Range: 20 to 110°F in 1° divs.
ships immediately