Applicable steel-bar diameter
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Ф6 mm~Ф50 mm
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Tested range of concrete backing thickness
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Low range: 6 mm~90 mm;High range: 7 mm~190 mm
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permissible error
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Low range
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High range
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±1
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6~59
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7~79
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±2
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60~69
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80~119
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±4
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70~90
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120~190
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Tested range of steel-bar diameter
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Ф6 mm~Ф50 mm
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Permissible error of steel-bar diameter test
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±1 grade
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Applicable environmental
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Temperature: -10℃~+40℃; Dampness: <90%RH
EMI: no Strong electromagnetic field
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Power supply
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6 dry cells, work more than 30 times
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Power supply
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6 dry cells, work more than 30 times
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