For checking frost protection of coolant (G12++ / ethylene glycol based G13), windscreen washer fluid, electrolyte density in battery and concentration of urea for Ad Blue.
4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System,...
TRZ 4-in-1 Antifreeze Refractometer Ethylene Glycol, Propylene Glycol black
4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze...
Refractometer Methanol Freezing Point Car Automotive Glass Tester Tools -50℃~0℃
