The Zerostat 3 prevents charged particles from "flying" around during weighing or transfer, and keeps film, glass, and plasticware dust and lint-free. It incorporates the latest development with a unique Piezo Crystal device which has been proven worldwide in neutralizing static electricity found in a variety of items located in the laboratory. This versatile instrument is portable and does not require batteries, electrical power supply or refills. Life expectancy is 50,000+ squeeze cycles (handle action). Each Zerostat 3 comes with a test ion-indicator to confirm that the unit is working properly.. Material: Body (ABS - acrylonitrile butadiene styrene). Size: ~4 in. × 6 in.. Weight: 4.9 oz. . . Sigma-Aldrich Z108812-1EA Zerostat Anti-Static Instrument, Keep Film, Plasticware Dust and Lint-Free, Glass. Country of Origin : Japan. Part Number : 1190V89EA. Pack of : 1.