Expert Quality precision refractometer suitable for measuring Urea concentration in AdBlue® diesel exhaust fluid and will also measure anti-freeze strength. Focusable eyepiece and Automatic Temperature Corrected (ATC) prism ensures accuracy. Designed for use with standard ethylene glycol and propylene anti-freeze. Supplied with calibration screwdriver calibration fluid pipette and cleaning cloth. Packed in storage case.


Specification:
Refractometer measuring range
Urea...0 to 40%
Anti-freeze...0 to -50°C