Accelerate your automotive maintenance routine with our high-precision Analog Automobile Refractometer. Designed for both professional garages and DIY enthusiasts, this versatile test instrument accurately measures the concentration of urea (commonly referred to as AdBlue), as well as the freezing points of ethylene glycol, propylene glycol, and window cleaner solutions. Thanks to its straightforward calibration and user-friendly scale, you can quickly verify fluid conditions, helping ensure engine safety and optimal performance for cars, trucks, and fleets.