Optical refractometer Rhino Duo-Chek®
pen typecoolantfor automotive fluids

optical refractometer
optical refractometer
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pen type
coolant, for automotive fluids


Meets ASTM D3321-12 Standard test method for field test determination for the freezing point of aqueous engine coolants.Test engine coolant and battery fluid with one instrumentThe Rhino Duo-Chek® engine coolant and battery test refractometer offers an accurate, fast and easy-to-use method for testing engine coolant freeze point, glycol concentration, and battery charge condition. Automatic temperature compensation provides immediate, accurate direct readings of ethylene glycol, environmentally safe propylene glycol, and battery electrolyte with only a few sample drops.Choose between Fahrenheit and Celsius instruments, each Rhino Duo-Chek® measures:Freeze point of ethylene glycol coolant% Concentration of ethylene glycol coolantFreeze point of propylene glycol coolant% Concentration of propylene glycol coolantBattery electrolyte specific gravityBattery electrolyte charge level
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