This refractometer measures the concentration of battery acid, engine coolant, and Diesel Exhaust Fluid (DEF) to determine fluid health and freeze protection levels. It provides immediate optical readings for specific gravity and urea percentages during routine vehicle or equipment inspections. This handheld instrument consolidates three essential testing capabilities into a single tool for maintenance workflows.

This refractometer measures the concentration of battery acid, engine coolant, and Diesel Exhaust Fluid (DEF) to determine fluid health and freeze protection levels. It provides immediate optical readings for specific gravity and urea percentages during routine vehicle or equipment inspections. This handheld instrument consolidates three essential testing capabilities into a single tool for maintenance workflows.