The EZ Red Handheld Refractometer (B108) is an indispensable instrument for anyone involved in automotive maintenance, from professional mechanics to home car enthusiasts. This compact and precise tool offers a comprehensive solution for analyzing critical automotive fluids, ensuring optimal vehicle performance and extending the lifespan of key components. Designed for straightforward operation, the B108 eliminates guesswork, providing clear and accurate data on battery electrolyte specific gravity and the freezing points of both ethylene and propylene glycol coolants. Its reliance on the principle of light refraction means it requires no batteries, offering reliable performance whenever and wherever you need it. The robust construction and inclusion of essential accessories make the EZ Red B108 a valuable addition to any toolkit, promoting proactive maintenance and preventing costly repairs. Whether you’re preparing for winter, diagnosing battery issues, or simply performing routine checks, this 3-in-1 refractometer delivers the insights you need to keep vehicles running smoothly.KEY FEATURES AND BENEFITS: Comprehensive Fluid Analysis: Accurately tests the specific gravity of battery electrolyte, providing a clear indication of battery charge status and overall health, which helps in preventing unexpected breakdowns and extending battery life. Dual Coolant Compatibility: Measures the freezing point of both common types of coolants ethylene glycol and propylene glycol ensuring your engine is protected in all weather conditions. Effortless Operation: Requires only a single drop of solution for testing, making the process quick, clean, and efficient, saving you time and effort during maintenance checks. Precision and Clarity: Features an adjustable lens focus and calibration screw to maintain accuracy, providing reliable data for informed decisions. Self-Sufficient Design: Operates mechanically with no batteries required, ensuring its always ready to use. Complete Package: Comes with a screwdriver, eyedropper, and padded case for calibration, sampling, and storage. Universal Temperature Readings: Displays results in both Fahrenheit and Centigrade for added convenience.SPECIFICATIONS: Included in the product when purchased: Screwdriver Distilled water Eyedropper Padded caseHOW TO USE: Prepare the Refractometer: Open the daylight plate and clean the prism surface thoroughly with a soft cloth. Ensure it is dry. Calibrate the Device (Recommended before first use and periodically): Place a few drops of the included distilled water onto the prism. Close the daylight plate gently. Look through the eyepiece. The light/dark boundary should align with the “0” mark on the scale. If it doesn’t, use the included screwdriver to turn the calibration adjustment screw until it does. Collect the Sample: Use the eyedropper to collect a small amount of the fluid you wish to test (battery electrolyte, ethylene glycol, or propylene glycol coolant). Apply the Sample: Place 1-2 drops of the collected fluid onto the main prism. Close the daylight plate gently, allowing the liquid to spread evenly across the prism without air bubbles. Read the Measurement: Hold the refractometer up to a light source (natural daylight works best) and look through the eyepiece. The light/dark boundary will intersect the appropriate scale for the fluid being tested. Read the value indicated at this intersection. Clean After Use: After each test, immediately clean the prism and daylight plate with a soft, damp cloth and then dry thoroughly to prevent residue buildup and maintain accuracy. Store the refractometer in its padded case.BENEFITS OF USING EZ RED HANDHELD REFRACTOMETER (B108): Cost Savings: Accurately monitoring battery charge and coolant levels helps prevent premature failures and reduces the need for costly repairs or replacements. Enhanced Safety: Ensures correct antifreeze levels and battery charge to protect engine components and avoid breakdowns. Ease of Maintenance: Makes routine fluid checks simple and accessible without needing specialized tools or expertise. Environmental Responsibility: Allows for correct coolant dilution and responsible disposal, reducing environmental impact. Reliable Performance: Mechanical operation ensures consistent results even without access to power sources. Increased Vehicle Lifespan: Supports long-term battery and engine health through regular fluid analysis.FEATURES: Adjustable eyepiece ensures clear visibility of readings. Measures battery electrolyte specific gravity accurately. Compatible with both ethylene and propylene glycol coolants. Displays temperature readings in Fahrenheit and Centigrade. Uses only a small fluid sample per test for convenience. Features built-in calibration for ongoing accuracy. Includes essential tools for setup and storage. Operates fully without batteries or electrical power. Compact, durable design suited for on-the-go use. Offers separate internal scales for analyzing different fluid types.