Ulstrasonic thickness gauge

TM-8812 Measuring range (metric/imperial): 1.2-225mm,0.05-9inch 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) RS232C interface: with RS232C

Power supply: 4x1.5V AAA (UM-4)battery Battery indicator: low battery indicator Operating conditions:0-+45(32-104),≤90%RH

Dimensions: 120x62x30mm weight: 164g(not including battery) TM-8811 Measuring range (metric/imperial): 1.5-200mm,0.06-8inch Operating principle: ULTROSONICMaterials 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-+45(32-104),≤90%RH

Dimensions: 160x68x32mm weight: 208g (not including battery) TM-8810 Measuring range (metric/imperial): 1.5-200mm,0.06-8inch Operating principle: ULTROSONICMaterials measured: only 11 types of materials, including steel, cast iron, aluminum, red copper, brass, zinc, quartz glass, polyethylene, PVC, gray cast iron, nodular cast iron Lower limit steel pipes: ф15x2.0mm, ф20x3.0mm determined by the transducer Calibration block: included Resolution: 0.1mm Accuracy: ±(0.5%n+0.1)

Power supply: 4x1.5vaa(UM-3) battery Battery indicator: low battery indicator Operating conditions: 0-+45℃(32℉-104℉),≤90%RH

Dimensions:160x68x32mmweight:208g(not including battery)