Ultrasonic Thickness Gauge TM-8811

Measuring range: 1.2-200mm, 0.06-8inch Operating principle: ULTRASONIC Materials measured: any hard materials, including steel, cast iron, aluminum, red copper, brass, zinc, quartz glass, polyethylene, PVC, gray cast iron, nodular cast iron and other materials Sound velocity: 500-9000m/ s Lower limit steel pipes: D15x2.0mm, D20x3.0mm determined by the transducer Calibration block: included Resolution: 0.1mm Accuracy: ( 0.5% n+ 0.1) Power supply: 4x1.5V AA( UM-3) battery Battery indicator: low battery indicator Operating conditions: 0-+ 45 ( 32 -104 ) , d90% RH Dimensions: 160x68x32mm Weight: 208g ( not including battery) Optional Accessories: 6M$ 6mm thin Material probe: Measuring range ( steel) : 1.0 50.0mm; Operating temperature: -10~ + 60 ; 5M$ 12high temperature probe: Measuring range ( steel) : 1.0~ 225.0mm( normal temperature) Measuring range ( steel) : 4.0~ 100.0mm ( high temperature) Operating temperature: -10~ + 300