Ref401-Ref415 Portable Handheld Car Refractometer

REF401/411 Battery/CoolantsThis model can be used for measuring the freezing point of either ethylene glycol or propylene glycol based cooling systems. It can be used for checking the strength of electrolyte solution batteries. Scale range: '-60~32° F1.15~1.30Kg/LMinimum scale: 10° F0.01Kg/LModel REF411 has a built-in automatic temperature compensation system. Compensation temperature range 10° F to 30° F. REF402/412 Battery/CoolantsThis model can be used for measuring the freezing point of either ethylene glycol or propylene glycol based cooling systems. It can be used for checking the strength of electrolyte solution batteries. Scale range: '-50~0° C 1.15~1.30Kg/L Minimum scale: 5° F 0.01Kg/L Model REF412 has a built-in automatic temperature compensation system. Compensation temperature range 10° F to 30° F. REF403/413 Battery/Coolants/CleanerThis model can be used for measuring the freezing point of either ethylene glycol or propylene glycol based cooling systems, it can be used for checking the strength of electrolyte solution batteries. Scale range: -50~0° F; Coolants-40~0° F; Cleaner1.15-1.30KG/L; BatteriesMinimum scale: 10° F5° F0.01 Kg/LModel REF413 has a built-in automatic temperature compensation system. Compensation temperature range 10° C to 30° CREF404/414 Battery/Coolants/CleanerThis model can be used for measuring the freezing point of either ethylene glycol or propylene glycol based cooling systems, it can be used for checking the strength of electrolyte solution batteries. Scale range: -50~0° C; Coolants-40~0° C Cleaner1.100-1.40 Kg/L; BatteriesMinimum scale: 5° C10° C0.01 Kg/L Model REF414 has a built-in automatic temperature compensation system. Compensation temperature range 10° C to 30° C. REF405/415 Battery/CoolantsThis model can be used for measuring the freezing point of either ethylene glycol or propylene glycol based cooling systems. It can be used for checking the strength of electrolyte solution batteries. Scale range: -50~0° C; Coolants-60~0° F; Cleaner 1.100-1.40 Kg/L; BatteriesMinimum scale: 10° C10° F0.01 Kg/LModel REF415 has a built-in automatic temperature compensation system. Compensation temperature range 10° C to 30° C.