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This refractometer has an exclusive scale for measuring specific gravity of battery fluid and forchecking the freezing temperature of ethylene glycol and propylene glycol which are used as antifreeze mixture in automobiles, thermal catalyst for solar power systems and other industrial applications.
Range: ＜Freezing temperature scale＞
E.G.: 0 to -50°C
P.G.: 0 to -50°C
＜Battery fluid d20/20＞
1.150 to 1.300
Minimum Scale: ＜Freezing temperature scale＞
E.G.: 5°C
P.G.: 5°C
＜Battery fluid d20/20＞
0.01
