Sper Scientific 300014 Battery Coolant Refractometer sold2026 Pink Flat Cell Phone Holder

Pink Flat Cell Phone Holder for Car Dashboard

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35 when output is 5V

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Sper Scientific 300014 Battery Coolant Refractometer sold2026 Pink Flat Cell Phone HolderSper Scientific 300014 Battery Coolant Refractometer Battery Coolant Refractometer m measures the freezing point of automotive coolants in their current concentration as well as battery charge. Both ethylene glycol and propylene glycol antifreezes can be measured, on separate scales. Battery charge is measured on a third scale using just a few drops of battery electrolyte solution (battery acid). The specific gravity of the battery acid is displayed