Frostschutzrefraktometer, Handrefraktometer, Kühlmitteltester für Ethylenglykol
Ethylenglykol: -50 bis 0 ° C. Ethylenglykol: 5 ° C. A blue line will indicate the Brix/Sugar Level of liquid. 1 Dropper. 1 screwdriver. 1 Automatic Urea Tester. Adjust focus if required (to make reading clearer).