Model Number: MT200 Brand Name: TLead Key Specifications/Special Features: It is designed to improve safety and ensure reliability of material subject to corrosion or erosionCorrosion gauges with their dual-element transducers are the primary inspection tool used to measure the remaining walls of components such as pipelines, pressure vessels, storage tanks, and numerous other applicationsPrecision gauges use single-element transducers to provide the thinnest range and highest degree of accuracy possibleCommon applications include metals and a variety of non-metals (i.e. glass, ceramic, plastic and more) Measuring range0.75-300mm (in steel) Sound velocity 1000-9999m/s Resolution 0.1/0.01mm (selectable) Units mm/inch (selectable) Storage 20 groups (100 files/group) Accuracy ± ( 0.5%thickness+0.04 ) mm Alarm preset upper and lower limit Work voltage 3V (2 AA alkaline batteries) Interface port RS232 Dimensions 132*76*33mm Weight 345g Display LCD with backlight Continuous working period 100 hours (with backlight off)