Handheld Antifreeze DEF(Adblue) Refractometer ATC, Coolant Meter for DEF Urea Concentration, Battery Fluid

The RHAN-747A handheld antifreeze and DEF(Adblue) refractometer measures the freezing temperature (in ℃) of automotive antifreeze based on ethylene glycol or propylene glycol, the urea concentration in DEF (Adblue), and the specific gravity (SG) of battery acid. The specific parameters are shown in the following table.

 

  • This model is a universial tool that is commonly used in automotive maintenance and battery servicing.
  • The instrument body is made of copper material to maximize measurement accuracy and durability.
  • This model has Automatic Temperature Compensation (ATC). Models without ATC are also available for a lower cost.

 

Measurement Specifications

Scale(s) Ranges Resolution Accuracy
Adblue
20% to 40%
1%
±1%
Ethylene 
-50℃ to  -10℃
1℃
±1℃
Propylene
-50℃ to -10℃
1℃
±1℃
Battery Fluid
1.200 to 1.300SG
0.01SG
±0.01SG



Product Description

The RHAN-747A Handheld Antifreeze and DEF (Adblue) Refractometer has three functions:

  1. It measures the freezing point temperature (in ℃) of ethylene glycol or propylene glycol - based automotive antifreeze. The reading indicates the temperature at which the measured solution starts to freeze.
  2. It measures the urea concentration of DEF (Adblue) to help manufacturers detect whether the concentration of vehicle urea solution products meets the exhaust emission standards.
  3. It measures the specific gravity (SG) of battery acid. Specific gravity is the density ratio of battery acid to water, which is used to indicate the charging state of lead - acid batteries. The higher the specific gravity value, the more fully the battery is charged.

This model is excellent for automotive maintenance professionals, fleet service providers, and manufacturers who require a versatile, reliable tool for monitoring multiple fluid systems in vehicles. Its compact design, ease of use, and multi-functionality make it a valuable instrument in both workshop and field environments.

 

 

Product Features

Refractometer Prism

4 in 1 Compact Multi-Fluid Tester

 Combines essential testing functions for coolant, DEF (AdBlue), and battery acid into one tool—ideal for routine vehicle servicing.

 

Copper Alloy Construction

 Thermally stable and workshop-durable housing for long-term performance in harsh conditions.

 

Automatic Temperature Compensation (ATC)

 Accurate readings without manual temperature adjustment, even in fluctuating environments.

 

 

 

Typical Applications

- DEF (AdBlue) Quality Checks

 Measure urea concentration in diesel exhaust fluid to support proper SCR system performance and emissions control.

- Battery Fluid Condition Testing

 Evaluate battery acid specific gravity within a practical range for most vehicle applications.

- Automotive Service & Repair

 Used by professional mechanics during routine maintenance, seasonal inspections, or roadside diagnostics.

- Coolant System Diagnostics (℃)

 Check the freezing point of ethylene and propylene glycol-based coolants to ensure proper protection in low temperatures.

 

 

Product Parameters

Model RHAN-747A
Net Weight 0.28kg
Length 203mm
Diameter 29mm
Temperature Range

10℃ to 30℃ with ATC

20℃ without ATC

 

 

Packaging

We have three packaging options: leather, plastic, or cardboard. The cost per unit vary with different packaging.

If you have a preferred packaging option or require customized packaging with your own text or logo, please feel free to send us an inquiry.

Handheld Refractometer Packaging Options and Content

 

 

Instruction of Use

Handheld Refractometer Instruction of Use

 

After-Sale Service

At Lindian Technology, we take pride in providing only premium-quality refractometers. If any of our products is found to be defective upon arrival, we will replace the defective unit free of charge.

In addition, we offer a free replacement warranty for a period of three years, along with free lifetime maintenance and calibration services.



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