REED R9700 Battery/Antifreeze Tester, -50 to 0°C (-50 to 32°F)


This battery coolant/glycol refractometer features Automatic Temperature Compensation (ATC) and monitors the freezing point of both Ethylene Glycol and Propylene Glycol. In addition the R9700 indicates battery recharge level.


  • Measures the freezing point of automotive coolants plus battery charge condition
  • Provides accurate and repeatable measurements of % Ethylene Glycol and Propylene Glycol and C° on easy to read scale
  • Automatic Temperature Compensation (ATC)
  • Requires only 2 or 3 drops of sample


Propylene and Ethylene Glycol Measuring Range -50 to 0°C
Resolution 1°C
Specific Gravity of Battery Acid 1.15 to 1.30
Minimum Scale Division 5°C
Automatic Temperature Compensation Range 10 to 30°C
Dimensions 6.5 x 1 x 1.5" (170 x 30 x 40 mm)
Weight 7oz (200g)