AutoCheck Automotive Antifreeze Refractometer and Battery Acid Tester with ATC

Protect your vehicle by checking essential fluids before extreme weather or costly problems strike. AutoCheck is a handheld coolant tester that measures the freezing point of ethylene and propylene glycol from -50°C to 0°C. It also works as a specific gravity tester for lead-acid battery electrolyte. Clear optical scales, compact construction, and automatic temperature compensation make routine inspections quick and convenient.

Key Features

• Checks antifreeze freeze protection from -50°C to 0°C.
• Measures battery-fluid specific gravity for maintenance checks.
• ATC helps compensate for temperature changes during testing.
• Uses ambient light, so no batteries or electrical power are required.
• Needs only a few drops of liquid for a fast reading.

Why Choose Our AutoCheck Automotive Antifreeze Refractometer

Basic float testers can be bulky and difficult to interpret. AutoCheck combines coolant and battery-fluid scales in one portable optical tool, giving mechanics and vehicle owners a practical way to perform several checks without separate instruments.

Perfect For

Ideal for cars, trucks, motorcycles, garages, repair shops, fleet maintenance, radiator servicing, seasonal inspections, and preventive vehicle care.

How to Use

Calibrate with distilled water, place a few drops of fluid on the prism, close the cover, and point the tool toward a light source. Look through the eyepiece and read the boundary line on the correct scale.

Care and Safety

Clean and dry the prism after every test. Wear suitable eye and hand protection when handling coolant or battery electrolyte, and never return tested liquid to its container.

Check Today, Drive with Confidence

Make fluid testing a simple part of your maintenance routine. Order AutoCheck today and stay better prepared for every season.