Digital Refractometer for Refrigeration Oil - Accurate A/C & HVAC System Testing | Perfect for Automotive, Industrial & Home Cooling Maintenance

This accurate and simple-to-use NU-CALGON refrigeration oil refractometer can determine the amount of oil remaining in a refrigeration system when converting it to a new refrigeration system. Model can identify lubricant residuals by measuring the refractive index. Device can be field calibrated prior to each test.

Item-Refrigeration Oil Refractometer

Includes-Carrying Pouch and Case