• 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
