Automotive Coolant Refractometer with ATC, Coolant Tester for Freezing Point, Battery Fluid Concentration

Product Description

The handheld coolant and battery fluid refractometer is widely used in car maintenance, repair workshops, and battery servicing. This tool helps ensure proper coolant protection in cold climates and accurate assessment of lead-acid battery charge levels.

The RHA-737A model handheld coolant and battery acid refractometer has two functions:

1. It measures the freezing point temperature 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 specific gravity (SG) of battery fluid. The specific gravity is the density ratio of battery fluid 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.

Product Features

Multi-Function 3-in-1 Design

Measures the freezing point and concentration of ethylene and propylene glycol coolants, as well as the specific gravity (SG) of battery fluid—a complete diagnostic tool for vehicle maintenance.

 

Copper Alloy Construction

Robust and thermally stable, the copper body enhances accuracy and withstands harsh workshop environments.

 

Automatic Temperature Compensation (ATC)

Ensures reliable and consistent results without manual adjustments across changing ambient temperatures.

 

 

 

Typical Applications

- Automotive Coolant Maintenance

Measure the concentration and freezing point of ethylene or propylene glycol coolant to ensure proper engine protection in all climates.

- Battery Fluid Diagnostics

Test the specific gravity of battery electrolyte to assess the charge status and health of lead-acid batteries in cars, trucks, and other vehicles.

- Power Equipment & Generator Maintenance

Evaluate coolant concentration and battery fluid SG in backup generators and industrial power systems.

 

 

Product Parameters

Model	RHA-737A
Net Weight	0.24kg
Length	153mm
Diameter	29mm
Temperature Range	10℃ to 30℃ with ATC 20℃ without ATC