RHA-100ATC 3-in-1 Automotive Battery Antifreeze Refractometer Fahrenheit, -84~32°F Ethylene/ -60~32°F Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Test Cooling Coolant Freezing Point Ruler Relative Humidity : 15 ~

Relative Humidity : 15 ~ 85%RH

Maximum Pressure: 30psi

- 1 x Pouch

Groove on all sides housing (can easily do the mark down)

and Russian

RHA-100ATC 3-in-1 Automotive Battery Antifreeze Refractometer Fahrenheit, -84~32°F Ethylene/ -60~32°F Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Test Cooling Coolant Freezing Point Ruler Relative Humidity : 15 ~Antifreeze Battery Cleaning Fluids Refractometer is designed for testing the concentration of the battery fluids, antifreeze liquids and cleaning fluids. It can also be used for checking the strength of electrolyte solution batteries. Features: Provides tri scale for direct reading in degrees Fahrenheit (F) Focus is adjustable and can be controlled manually Guaranteed high quality and accurate testing results Equipped with Built in ATC compensation