Professional Alcohol Hydrometer Meter Tester 0 to 100% with 1 Piece Thermometer for Wine Vodka Whiskey Alcoholmeter Measuring Instrument Measurement Tools with Plastic Case Easy to Read and Use The scale on the hydrometer reads from 0 to 100 degrees of alcohol Three pcs Hydrometer alcohol meter 0 to 100% 0-40 / 40-70 / 70-100 with 1 pcs 0-50 degree Thermometer The scope of application of the surface temperature 0 - +40 degrees Celsius The amount of alcohol alcohol concentration was measured only at standard temperature (20 Celsius) is the actual concentration of alcohol.