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 polycarbonate, 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
Credit Card Size