Car Maintenance

At Fuzhou Lindian Technology, we offer a specialized line of handheld refractometers designed for automotive maintenance and fluid quality control.

These instruments provide fast, accurate, and portable testing across a variety of essential vehicle fluids.

Our automotive refractometers are commonly used to measure:

• Coolant / Antifreeze – Quickly determine the freezing point of ethylene or propylene glycol-based coolant to ensure proper engine protection.
• Battery Fluid – Measure the specific gravity (SG) of battery electrolyte to assess battery health and performance.
• DEF / AdBlue – Check the urea concentration to ensure compliance with emission standards.
• Windshield Washer Fluid – Measure both the concentration and freezing point to guarantee visibility in cold weather conditions.

All of our handheld models are easy to use, require no external power, and are built with durable materials such as copper alloy bodies and optical glass prisms for long-term accuracy and reliability.

Whether you're a mechanic, workshop operator, or automotive supplier, our instruments help you maintain safety, performance, and compliance with confidence.