Alcoholometer 30-60% with temp. compensating thermometer (Widder Germany)
This highly accurate alcoholometer has a very defined scale between 30-60% alcohol.
It is combined with a thermometer in Celcius which has a temp compensating scale in degrees alcohol. The alcoholometer has been calibrated to test ethyl alcohol (in a solution of water) at 20C/68F
Check the temperature of the thermometer and adjust the alcohol reading to the scale.
Manufactured by Widder Germany.
This is the highest quality laboratory standard product in the Widder German manufactured alcohol reading equipment