PCE-DRC 1 is a handheld digital refractometer used to determine the specific gravity (sg) of electrolyte solution batteries as well as the freezing point of propylene or ethylene glycol-based coolants. The refractometer also works well for measuring cleaning products. This waterproof IP65-rated digital refractometer features automatic temperature compensation (ATC) from +10 ... +40 °C / +50 ... +104 °F, as well as a large, easy-to-read LCD that shows both the measured value and the temperature.
 

Measurement parameters:
- Coolant or antifreeze (ethylene glycol), propylene glycol,
   battery acid, cleaning supplies, temperature
- Measurement range: -50 ... 0 °C
- Resolution: 0.1 °
- Accuracy: ±0.5 °C
- Automatic temperature compensation (ATC)