SPI 1" / 25.4mm Electronic Indicator Features include... 1" / 25.4mm Measuring Range 0.00005" / 0.001mm Resolution + 0.00016" / 0.004mm Accuracy Flat & Lug Backs included 3/8" Stem, 4-48 Threaded Tip 330° Screen Rotation SPC Output Functions include... Preset Tolerance Ground Shipping Only This gage contains lithium batteries. UPS will only ship products with lithium batteries via Ground shipping ONLY. For SPC Output, you will want to order the USB Interface & Cable package... 11-967-7