SMARTSMITH DEF Refractometer 0-40% AdBlue Diesel Exhaust Fluid Urea Concentration Refractometer - 32 AUS (Aqueous Urea Solution) Urea Concentration Scale Hand Held Refractometer Foam-Lined Hardcase

Key features

• The refractometer is a portable precision optical instrument used for measuring the diesel exhaust fluid concentration.
• AIRCRAFT ALUMIUM BODY MATERIAL:The Urea Concentration Refractometer is made of non-staining, non-corrosive and non-reactive aluminum which is lightweight to carry,anti-scratch and durable.
• EASY TO USE:Just need 2-3 drops of solution, you can get accurate readings. No batteries needed.
• Equipped with “Automatic Temperature Compensation” (ATC) for accurate measurements without recalibration after shifts in ambient working temperature (field use).The "ATC" range is 10'C-30'C (50'F-86'F).
• 3 DROPPERS BONUS:In consideration of some customers feedback say 1 dropper is not enough for frequent uses,we have packed 3 droppers for you.Every piece of our products is strictly inspected before sale.If this product fails through faulty materials or workmanship, contact our service department direct on amazon.