Antifreeze Tester - Ethylene Glycol

Easy to read hydrometer, designed for modern Ethylene Glycol antifreeze. Also suitable for use on Organic Acid Technology (OAT) antifreeze.

• Number of floating discs measures the level of coolant protection.
• Tests at hot and cold temperatures; reads in celsius and fahrenheit.
• Floating orange disc shows over protection and loss of efficiency. Bulb is Black with 6 coloured discs.
• For the Propylene Glycol Antifreeze Tester, please see Laser Part No. 4292.