Stepless manual focus can adapt to all eyes. AdBlue: urea concentration 30% - 35%.
AOKUY Antifreeze Refractometer, Hand Refractometer Coolant Tester for Ethylene Glycol, Propylene Glycol, Freezing Point of Cooling Water, Windscreen Water, AdBlue, Battery Acid, Urea Concentration of
RGBS Antifreeze Refractometer for Glycol, Antifreeze, Coolant and Battery Acid. Antifreeze Tester for Measuring Freezing Point of Automobile Antifreeze and Battery Fluid Condition
Abuycs Antifreeze Refractometer for Glycol, Antifreeze, Coolant and Battery Acid, Measuring Freezing Point of Automobile Antifreeze, Glass water tester ATC Tool
QWORK® 4-in-1 Antifreeze Refractometer with Automatic Temperature Compensation for Antifreeze + Battery Fluid + AdBlue(DEF) + Windshield Washer Fluid
Qumox 4-in-1 Coolant Refractometer for Antifreeze, Battery Acid, Diesel Exhaust Fluid & Windshield Washer – No Battery Needed, ATC Optical Tester with Case for Car
GAIN EXPRESS 3-in-1 Automotive Battery Antifreeze Refractometer, Battery Charge Test Cooling System Coolant Freezing Point (3 Scales Measurements)
