This calibrated tell-tale is easy to install with screws, nails or epoxy (see Quick Set Epoxy). It is waterproof and weather resistant so it can be used inside or outside. This monitor is direct reading to an accuracy of one millimeter for horizontal or vertical movement. The Avongard Crack Monitor consists of two overlapping acrylic plates. One plate is white with a black millimeter grid, while the other is transparent with red crosshairs centered over the grid. Once the Crack Monitor is in position across a crack, the crosshairs shift vertically or horizontally on the grid if movement occurs. Included is a crack progress chart for marking the position of the crossed cursor on site, and for engineering evaluation later.

Crack Monitors

Check price list