The RHA-737A handheld coolant and battery fluid refractometer measures the concentration percentage of automotive coolant, the freezing point temperature (℃) of automotive coolant, and the specific gravity (SG) of battery fluid. The parameters of these measurement scales are shown in the table below.
This model is commonly used in automotive maintenance and battery servicing.
The instrument body is made of copper material to maximize measurement accuracy and durability.
It also has an Automatic Temperature Compensation function (ATC), which can provide accurate readings under different ambient temperatures.
Measurement Specifications
Scale(s)
Measurement Range
Min. Division
Accuracy
Ethylene
-60 to 0℃
3℃
±3℃
Propylene
-50 to 0℃
3℃
±3℃
Battery Fluid
1.150 to 1.300 SG
0.005sg
±0.01sg
