- High-quality Refractometer offers a fast, easy way to test the freezing point of coolant/anti-freeze.
- Works with Ethylene or Propylene Glycol or long-life anti-freeze.
- Also measures battery acid gravity to determine battery life.
- Automatic temperature compensation.
- Large, easy-to-read graphics and high-contrast lens.
- Adjustable viewfinder; rugged, steel body construction. Includes storage case, fluid dropper, cleaning cloth and mini screwdriver.