diesel exhaust fluid tester for trucks and commercial vehicles

The DEF-35A Handheld Adblue Refractometer measures the percentage of urea concentration in diesel exhaust fluid (DEF or Adblue). It  has a measurement range of 0-35% Adblue and an accuracy of ±1%.   This model is commonly used in the fields of automotive maintenance, vehicle emissions control, and diesel engine servicing. The main body of the instrument is made of copper materials to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available for a lower cost.   Measurement Specifications Scale(s) Ranges Resolution Accuracy Adblue 0 to 35% 1% ±1%