Standard Refractometer craft apron Clear and easy-to-read LED display

Clear and easy-to-read LED display

the instrument will alarm automatically

This set is organized by size in a transparent storage case for quick access and protection

A solid-state dry cleaning material in stick form

Round (3021)

Standard Refractometer craft apron Clear and easy-to-read LED displayThis outstanding instrument gives clearer, brighter, and more crisp readings than units that cost twice as much. The sharp lines are clearly visible and the correct reading is easily seen immediately. The unit has built in sodium (yellow) filter, eliminating the need for a special sodium light source. It comes with a white light source that fits in behind the sodium filter. All are packaged in a handy vinyl travel case.