Refractometer Antifreezes of 2025
Best Choice1
VeeGeeVee Gee Scientific CTX-2 Handheld Refractometer, with Antifreeze/Coolant Scales, -50 to 32 degree F Freezing Point
Main highlights- Optical glass prism mounted in all-metal housing for quick temperature equilibrium between sample and prism
- Handheld portable refractometer for antifreeze and battery charge level measurement of the freezing point of propylene glycol (-50.0 to 32.0 degrees F), the freezing point of ethylene glycol (-60.0 to 32.0 degrees F), and the specific gravity (SG) of battery acid (1.10 to 1.40) in a 10 to 30 degrees C temperature range
- Durable metal and rubber outer shell with a telescope-shaped, streamlined design (40 x 40 x 150mm), a rubber grip to guard against hand heat for accurate measurements, and a non-roll stand to protect against damage
- Automatic temperature compensation (ATC) for immediate and accurate calibration readings, regardless of ambient temperature
- Ambient light illuminates the scale; no additional power source is required
9.8Exceptional
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Value for Money2
VeeGeeVee Gee Scientific CTX-1 Handheld Refractometer, with Antifreeze/Coolant Scales, -50 to 0 degree C Freezing Point
Main highlights- Optical glass prism mounted in all-metal housing for quick temperature equilibrium between sample and prism
- Handheld portable refractometer for antifreeze and battery charge level measurement of the freezing point of propylene glycol (-50.0 to 0.0 degrees C), the freezing point of ethylene glycol (-50.0 to 0.0 degrees C), and the specific gravity (SG) of battery acid (1.10 to 1.40) in a 10 to 30 degrees C temperature range
- Durable metal and rubber outer shell with a telescope-shaped, streamlined design (40 x 40 x 150mm), a rubber grip to guard against hand heat for accurate measurements, and a non-roll stand to protect against damage
- Automatic temperature compensation (ATC) for immediate and accurate calibration readings, regardless of ambient temperature
- Ambient light illuminates the scale; no additional power source is required
9.7Exceptional
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3
aichose4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid
9.3 Simple to use8.7 Precision8.0 Simple to cleanWhy we love it
Versatile tool for multiple automotive fluid measurements.
Easy to use and calibrate with distilled water.
Automatic temperature compensation for quick, accurate results.
9.6Exceptional
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4
TRZTRZ 4-in-1 Antifreeze Refractometer Ethylene Glycol, Propylene Glycol in Antifreeze Freezing Point Temperature and Concentration, AdBlue, DEF and Industrial Battery Fluid
Why we love it
Accurately measures antifreeze concentration.
Versatile for multiple fluid types.
Easy to read results.
9.4Excellent
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5
aichose3-in-1 Antifreeze Tester in Fahrenheit Scale for Checking Freezing Point and Concentration of Ethylene Glycol or Propylene Glycol Based Automobile Antifreeze Coolant, Also for Battery Acid Condition
Main highlights- Quick and easy: Just need 2-3 drops of solution and a few seconds, you can get accurate readings. And no battery needed.
- Function 3:Measuring specific gravity of battery acid and provide a quick reference of battery charge condition. Scale Range:1.100~1.400kg/l
- Function 2: Measuring concentration of ethylene glycol or propylene glycol based automobile antifreeze coolant. Scale Range: ethylene glycol base: 0-70% propylene glycol based 0-63%
- Function 1: Measuring freezing point temperture of ethylene glycol or propylene glycol based automobile antifreeze coolant. Scale range: ethylene glycol base: -84°F-32°F, propylene glycol based -60°F-32°F
- Features automatic temperature compensation: makes it more convenient to use in different temperature.
9.3Excellent
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6
NEEBETEK5-in-1 DEF Antifreeze Refractometer for Automobile Coolant Systems Diesel Exhaust Fluid, Ethylene Glycol or Propylene Glycol Based Freezing Point Tester for Windshield Washer Fluid and Battery Acid
Main highlights- Windshield Washer Fluid Compatibility: Measures the freezing point of windshield washer fluid from -40°C to 0°C (-40°F to 32°F), compatible with both ethylene glycol and propylene glycol-based solutions.
- Wide Range Measurement: Measures antifreeze freezing point from -50°C to 0°C (-58°F to 32°F), compatible with both ethylene glycol and propylene glycol-based solutions.
- Optimal DEF Performance: Measures urea concentration in Diesel Exhaust Fluid (DEF) from 30% to 35%, ensuring optimal SCR system performance at the ideal 32.5% concentration level.
- Extensive Used: Essential for automotive, agricultural & industrial applications requiring precise coolant measurements.
- Battery Electrolyte Specific Gravity: Measures specific gravity of lead-acid battery electrolyte from 1.10 to 1.40, providing reliable charge status indication for automotive and industrial batteries.
9.2Excellent
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7
HallocoolAntifreeze Refractometer in Fahrenheit 4 in 1 Antifreeze Tester Coolant Refractometer Ethylene Propylene Glycol Refractometer for Antifreeze System Diesel Exhaust Fluid, Battery Acid
Main highlights- Easy To Use - Only need 2 or 3 drops of solution and wait for few seconds, then you get the accurate results. These antifreeze tester needs less sample solution than tradistional hydrometer and less expensive then digital refractometer
- Durable And Portable - Antifreeze coolant tester is made of aluminum and ABS rubber, non-staining, anti-rust and stury for long perfermance. Comes with durable plastic box, portable and easy to take with you
- Display In Fahrenheit - Updated antifreeze coolant refractometer in Fahrenheit (℉) display, allow you easy to read measured results by ℉ unit, no need to units conversion and save your time
- ATC Function - Coolant refractometer Fahrenheit can automatically compensate temperature when ambient temperature changes, eliminate the deviation, you can get the accurate results fast and easier
- 4-in-1 Tester - Measuring Freezing of automoblie antifreeze based on ethylene glycol or propylene glycol -60℉ to 32℉. Measuring Specific Gravity of battery acid 1.10 to 1.40Kg/L. Measuring of Windshield Washer Fluid based on ethanol or isopropyl alcohol -40℉ to 32℉. Measuring Urea Concentration in automobile diesel exhauset fluid (DEF) 30% to 35%
9.1Excellent
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8
V·RESOURCINGAntifreeze Refractometer,V·RESOURCING Hand-Held Anti Freeze Tester for Car Coolant Adblue Antifreeze System, Glycol Propylene,Glycol Ethylene,Battery Acid,Coolant Windshield Fluid
Main highlights- 5.[ Application ] This Antifreeze Refractometer Tester is a portable tool for car owners. It can be used to test freezing point of automobile antifreeze systems,battery fluid condition,battery acid, glycol, coolant.
- 4.[ Convenient to store ] Compact in size and light in weight, packed with a plastic case, convenient to store and carry around
- 3.[ Easy to use ] Place 2 - 3 drops of sample onto the prism, and then look through the eyepiece for the results
- 2.[ Measuring Range ] Battery fluid 1.10~1.40kg/l ;Propylene Glycol: -50°C -0°C ; Ethylene Glycol: -50°C -0°C ;AdBlue: 30 to 35%;Screenwash/SRF1:-40~0°C
- 1.[ Antifreeze Refractometer ] Designed for measuring coolant and antifreeze based on ethylene glycol or propylene glycol ,battery fluid condition and screenwash antifreeze (windshield washer fluid) based on ethanol as well as on isopropyl alcohol. And check the urea concentration in AdBlue
8.9Very Good
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9
BRWISSENBRWISSEN Digital Refractometer 5-in-1 Antifreeze Coolant Diesel Exhaust Fluid DEF Tester - Urea Concentration, Antifreeze & Car Windshield Washer Fluid Freeze Point Detector
Main highlights- Versatile Compatibility- Suitable for the antifreeze coolant and windshield washer fluids freezing point test to ensure your vehicle is prepared for extreme temperatures
- Easy toUse --Simple one-button operation for quick and hassle-free testing, direct reading within 3 seconds, easily readable results displayed on the LCD screen
- Diesel Exhaust Fluid Tester -Instantly assess urea concentration in diesel vehicles to ensure optimal system performance
- Cost-Effective Maintenance - Prevent engine and washer system damage by detecting freezing points early, saving on potential repair costs
- Compact and Portable- Small and lightweight design for on-the-go testing and convenient storage, sturdy build for long-lasting use in various automotive environments
8.8Very Good
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10
Robinair27% OffRobinair 75240 Coolant and Battery Refractometer
Main highlights- When a liquid (such as coolant or charging liquid) is placed on the tools prism, the light passing through it is bent - the more concentrated the liquid, the more the light will bend
- Scale range: -60 degrees Fahrenheit to +32 Fahrenheit
- Robinair's Coolant and Battery Refractometer is designed for use in measuring the freeze point of propylene or ethylene glycol based cooling systems and for checking the strength of electrolyte solution batteries
- Precision instrument features high-quality optics with ultra smooth focusing to ensure reliable, accurate test results
- Complete kit includes refractometer with rugged aluminum housing, eyedropper, screwdriver, vial of distilled water, cleaning cloth, foam lined rigid plastic case, and more
8.7Very Good
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