Extech RF41 Portable Battery Coolant/Glycol Refractometer

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The Extech RF41 Portable Battery Coolant/Glycol Refractometer measures the freezing point of coolants and concentration of Ethylene/Propylene Glycol from -50 to 0°C and the Specific Gravity of battery acid from 1.11 to 1.30 and provides a quick reference of battery charge condition.

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pdf-6    Extech RF Series Datasheet

pdf-6    Extech RF41 User Manual

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