Automotive Antifreez Refractometer Freezing Point Urea Battery Fluid Glass Water Tester ATC Tool This refractometer is designed to measure the following items: A. The freezing point of Antifreeze based on Propylene Glycol and Ethylene Glycol. It can not measure the antifreeze based on methanol. B. The freezing point of Automotive glass water. It can not measure the glass water based on methanol. C. The concentration of Automotive Adblue (Urea) D. The Specific Gravity (sg) of the rechargeable battery fluid. It is equipped with Automatic Temperature Compensation (ATC), so that the fractometer is automatically adjusted to correct temperature discrepancies of environment temperature. Quad-Scale design to measure the Freezing poing of antifreeze, Freezing point of automotive glass water, Specific gravity (sg) of the rechargeable battery fluid, The concentration of Automotive Adblue (Urea) Easy to use, sturdy design, compact in size and light in weight, convenient to keep up and carry arround. We provide Manual in English, Russian. With Built-in ATC (Automatic Temperature Compensation) from 10~30 degree Celsius. Soft Rubber eyepiece for comfortable viewing Equipped with scale measurement which provides direct reading Accurate testing results guaranteed Durable and bulit to last long Adjustable manual focusing Use ambient light only which means battery or power source is not required Measuring range: Freezing point of Antifreeze based on Propylene Glycol: -50~0 C (Resolution: 1 C) Freezing point of Antifreeze based on Ethylene Glycol: -50~0 C (Resolution: 1 C) Freezing point of Automotive glass water: -40~0 C (Resolution: 1 C) Concentration of Adblue (Urea): 30%~35% (Resolution: 0.2%) Specific Gravity of Rechargeable Battery Fluid: 1.10~1.40KG/L (Resolution: 0.01) ATC range: -10~30 C (50~86 F) Dimension: 155x40x40mm Weight: 87g 1x Refractometer 1 x Plastic pipette 1 x Mini Screw Driver 1 x Cleaning Cloth