Extech RF41

• Measures the freezing point of coolants and concentration of Ethylene/Propylene Glycol
• Measures -50 to 0°C Propylene/Ethylene Glycol freeze point and 1.11 to 1.30 Specific Gravity of Battery Acid
• Automatic Temperature Compensation (ATC)
• Requires only 2 or 3 drops of solution
• The prism and lens with a simple focus adjustment

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Each Unit Includes

• Case
• Calibration screwdriver
• Plastic pipette
• Calibration solution