Application:
        Used for measuring thickness and corrosion of pressure vessels,chemical equipment,boilers,oil storage

tanks,etc.in industries of petroleum,shipbuilding,power station,and machine manufacturing.
Model: TM-8811
Measuring range (metric/imperial): 1.2-200mm,0.06-8inch
Operating principle: ULTROSONIC
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: 15x2.0mm, 20x3.0mm 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-+45C(32F-104F),less then 90%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~+60C
                                 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~+300C