Coolant Refractometer

ATD Tools Coolant Refractometer ATD-3705

• 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.