Master BR Battery Coolant Refractometer - Ethylene Glycol is a handheld device utilized for the measurement the concentration of ethylene glycol in engine coolant as well as battery electrolyte solutions. Ethylene glycol is a general antifreeze and coolant agent utilized in automotive and industrial applications. It is engineered to provide accurate measurements of the concentrations of ethylene glycol in a range of 0-66.6%. It can be utilized for varied applications, comprising testing engine coolant in aircraft, vehicles, and heavy machinery, and testing battery electrolyte solutions as well. Further, Master BR Battery Coolant Refractometer - Ethylene Glycol comes in varied models and specifications.