The Professional Automotive Antifreeze and Coolant Tester is an essential precision instrument designed for workshops and car owners to accurately measure the protection levels of engine coolant systems. Engineered for universal fitment, this high-durability hydrometer allows for quick and reliable testing of ethylene glycol concentrations, ensuring your engine remains protected against both freezing in winter and boiling in extreme summer heat.

Featuring a heavy-duty, impact-resistant design, this tester provides instant readings via a clear, easy-to-read scale. The dual-temperature calibration allows technicians to view results in both Celsius (C) and Fahrenheit (F), making it versatile for international vehicle specifications.

Key Features and Benefits

• Dual Temperature Calibration: Features precise scales in both Celsius and Fahrenheit for global compatibility and ease of use.

• Universal Fitment: Designed to work effectively with all standard ethylene glycol-based antifreeze and coolant mixtures.

• Quick & Accurate Sampling: The high-quality rubber bulb and intake tube allow for easy suction directly from the radiator or expansion tank.

• Internal Temperature Compensation: Specially calibrated to provide accurate readings regardless of whether the coolant is warm or cold.

• Prevention of Engine Damage: Helps identify if the coolant mixture is too weak (risking freeze-cracking) or too strong (risking overheating and poor circulation).

• Professional Grade Durability: Built with high-strength plastic and chemical-resistant rubber to withstand daily use in demanding workshop environments.

User Manual: How to Use the Coolant Hydrometer

1. Preparation: Ensure the engine is completely cool before opening the radiator cap or expansion tank to prevent steam burns.

2. Sampling: Insert the intake tube into the coolant reservoir. Squeeze the rubber bulb to draw a sufficient amount of coolant into the clear chamber.

3. Removal of Bubbles: Tap the side of the tester gently to remove any air bubbles trapped on the internal pointer, as bubbles can lead to inaccurate readings.

4. Reading the Scale: Hold the tester vertically at eye level. Observe where the pointer settles on the scale:

   • Freezing Point: Indicates the lowest temperature at which the engine is protected against freezing.

   • Boiling Point: Indicates the maximum temperature protection against coolant boil-over.

5. Assessment: If the protection levels are outside the manufacturer's recommended range, adjust the mixture by adding concentrated antifreeze or distilled water accordingly.

6. Cleaning: After each use, flush the tester thoroughly with clean water to prevent chemical buildup and ensure long-term accuracy.