Automotive Coolant DEF Refractometer ATC, Adblue Urea Concentration Meter for Ethylene Propylene Battery Fluid DEF

The RHAN-737A 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

4-in-1 Fluid Testing Tool

 Combines measurement of coolant freezing point, DEF (AdBlue) urea concentration, battery fluid specific gravity, and cleaning fluid—all in one compact instrument.

 

Copper Alloy Body

 Provides excellent durability and thermal stability for accurate readings in workshop or field conditions.

 

Crown Glass Prism

 Minimizes optical distortion and improves clarity, resulting in more accurate and easier-to-read measurements.

 

Automatic Temperature Compensation

 Ensures precise measurements without manual adjustments under changing ambient temperatures.

 

 

 

Typical Applications

- Coolant System Maintenance (℃)

 Check coolant freezing points in Celsius to ensure proper engine protection in varying climates.

- DEF (AdBlue) Urea Concentration Testing

 Verify urea levels in diesel exhaust fluid to maintain SCR system performance and emission compliance.

- Cleaning Fluid Freezing Point Checks

 Ensure windshield washer fluid performs correctly in low-temperature conditions.

- Battery Condition Monitoring

 Evaluate specific gravity of battery electrolyte to assess charge level and detect performance issues.

 

 

Product Parameters

Model	RHAN-737A
Net Weight	0.25kg
Length	170mm
Diameter	29mm
Temperature Range	10℃ to 30℃ with ATC 20℃ without ATC