WELZH Werkzeug Refractometer for AdBlue

This tool measures the strength of AdBlue®, screen wash, battery fluid & antifreeze by measuring the refractive index of light passing through the mixture solution.
Suitable for artificial antifreeze mixtures featuring G13, aqueous/urea contents of AdBlue® & long life OAT (Organic Acid Technology).
Temperature corrected prism ensures accurate readings.
To calibrate use water. Eyepiece with adjustable focus.
Comes with pipette & storage box.