RHA-503ATC Handheld Antifreeze/Battery/Cleaning Fluid Refractometer

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This refractometer are equipped with °C unit system. It is designed to test concentration of battery fluidsantifreeze liquid and cleaning fluids. Compared with other Battery Acid refractometers, this tool has 4 scales design to measure the freezing point of Windshield Cleaning Fluid. With the indication of the percentage of concentration, you will know at which temperature (°C) of the fluid will be frozen for Propylene Glycol, Ethylene Glycol and Cleaning Fluids.

Furthermore, it can be used for checking the strength of electrolyte solution batteries in unit of Specific Gravity (sg). Specific gravity (sg) is the ratio of the density of a given solid or liquid to the density of water at a specific temperature and pressure. It is built with Automatic Temperature Compensation (ATC), so that the refractometer is automatically adjusted to correct temperature discrepancies of environment temperature.


  • Quad-scale design to measure concentration or density of Battery Fluid, Propylene Glycol, Ethylene Glycol and Cleaning Fluids
  • Approved by strict quality and safety standards
  • Durable and built to last long
  • Heavy-duty and lightweight with its aluminum construction
  • Easy to focus and calibrate
  • Accurate testing results guaranteed
  • Extremely easy-to-use and calibrate
  • Can be easily calibrated with a mini-screw driver


  • Measuring Range:
    • Ethylene Glycol: -50 ~ 0°C
    • Propylene Glycol: -50 ~ 0°C
    • Cleaning Fluids: -40 ~ 0°C
    • Battery Fluids: 1.100 ~ 1.400sg (specific gravity)
  • Divisions: 
    • Ethylene Glycol: 5 °C
    • Propylene Glycol: 5 °C
    • Cleaning Fluids: 5 °C
    • Battery: 0.01 sg (specific gravity)
  • Accuracy:
    • Ethylene Glycol: ±5°C
    • Propylene Glycol: ±5°C
    • Cleaning Fluids: ±5°C
    • Battery Fluids: ±0.01sg (specific gravity)
  • Temperature Compensation Range (ATC): 10 ~ 30°C
  • Traditional version: Using screw driver for calibration
  • Item size: approx. 150 (L) x 29 (W) x 29 (D) mm (5.91' x 1.14' x 1.14' inch)
  • Item weight: approx. 140 g


Set Includes

  • 1 x Traditional Battery Refractometer
  • 1 x Pipette
  • 1 x English Operations manual
  • 1 x Mini-screw driver
  • Soft protective carrying case

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