The 2028.10X Crack Light Scale (Comparator) is used for measuring the width of cracks. Place the 2028 over the crack and simply compare the crack width with the 2020 scale.
The 2028.10XCrack Light Scale (Comparator) is used for measuring the width of cracks. Place the 2028 over the crack and simply compare the crack width with the 2020 scale. The crack light scale consists of the magnifying unit and a section to insert two dry cell batteries with a connector in between. Any of the sections can be detached. The 2028 has 10X magnification.