Crack Width Gauge

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The Crack Width Gauge is specifically designed to measure widths and locations of cracks prior to starting a monitoring program. Suitable for internal and external use Made of poly carbonate, which has a coefficient of linear thermal expansion of 7.0 x 10-5 cm/cm/°C for ambient temperatures between -30°C and 30°C Scale is calibrated from the end of the gauge to facilitate measuring cracks in corners Supplied in protective case CT-2940 Show more