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
This high-quality refract meter offers a fast, easy way to test the freezing point of coolant/anti-freeze. It works with ethylene or propylene glycol anti-freeze and is not for use with OAT coolants. Included is a storage case, fluid dropper, cleaning cloth and mini screwdriver.