SPI Zoom Comparators is only available to buy in quantities of 1
Product Information
Size: 2.56 in x 1.77 in dia. Diopter adjustment ring: +2.5D to -5D. Reticle with 0.005 in/0.1mm graduation included. 1 3/8 in dia. Reticule SPU-40241C to SPU-40253M also fit the zoom comparator. Made in Japan.