Coolant Antifreeze Tester Refractometer Fluid Propylene Glycol Detector Engine

It can also be used for checking the condition of electrolyte solution batteries. Scale Range: ethylene glycol based: 32 to -84 degree F, propylene glycol based:32 to -60 degree F. Propylene Glycol: -60~32°F,0~-50°C.

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