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RF41 – Portable Battery Coolant/Glycol Refractometer with ATC (°C)

Refractometer measures the Propylene/Ethylene Glycol freezing point 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. Requires only 2 or 3 drops of solution for fast and accurate readings. Automatic Temperature Compensation provides repeatable measurements on an easy to read scale. Prism and lens with a simple focus adjustment. Includes carrying case and calibration screwdriver.

  • 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
  • Complete with case, calibration screwdriver, plastic pipette and calibration solution
Specifications Range Resolution Basic Accuracy
Propylene Glycol freeze point -50°C to 0°C 1°C (1%) ±2%
Ethylene Glycol freeze point -50°C to 0°C 1°C (1%) ±2%
Specific Gravity of Battery Acid 1.15 to 1.30 0.01
Dimensions/Weight 6.5×1.5×1.5″ (165x38x38mm)/ 7oz (200g)
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