Concrete Crack Ruler Gauge Kit

Crack Monitoring Pins: Concrete Crack Ruler Gauge Kit

Concrete Crack Gauge Kit with Crack Width Ruler

Crack Monitor Kits are products designed to monitor cracking in structural concrete. Crack Monitor components are also available separately as additional or replacement items see Crack Monitors.

The Concrete Crack Gauge Kit includes 5 Crack Monitor Plus units, 2 Corner Adapters and a crack width ruler with graduated lines to measure initial crack width. This transparent concrete ruler is a low cost alternative to more expensive measuring devices. The kit also includes 7 packs of 4 each 1in (#8) Philips wood fixing screws, 1 dispenser tube of rapid-set epoxy adhesive, an instruction manual with clear instructions to guide users through the installation and monitoring process, and recording sheets. A crack progress chart is included to help users record and visualize crack movement over time. All components fit into a carry bag with shoulder strap.

The product can be installed using screws or glue, and mounting options are provided for different surfaces. When using this, glue can be used as an alternative installation method when drilling or penetrating the concrete is not possible. It is important to follow the provided instructions for proper installation and to ensure accuracy during mounting.

The crack width ruler is for measuring cracks in concrete and other building materials. This is a practical and economical solution for inspectors.

What Is a Crack Kit

Crack kits are essential tools for inspectors and professionals working in the construction materials testing and building materials industry. These kits typically include a crack ruler calculator, crack width gauge, and related accessories used to measure crack width, length, and movement. By monitoring changes over time, inspectors can assess crack severity and identify potential structural issues. All measurements are recorded for future reference, helping ensure accurate repair planning and long-term structural safety.

Applications and Uses

Crack kits are widely used to monitor cracks in buildings, bridges, roads, pavements, and masonry structures. The kit features two overlapping acrylic plates—one with a millimeter grid and the other with crosshairs—allowing precise tracking of horizontal and vertical crack movement. Easy to install using screws or epoxy, the gauge remains in place for long-term monitoring. The included crack progress chart helps record changes over time and determine whether corrective action is required.

This gauge kit is suitable for use in a variety of applications, from monitoring cracks in walls and corners of buildings to tracking movement in bridges and roads. It’s a standard tool for professionals in structural engineering and materials science, but its simple, user-friendly design also makes it ideal for DIYers and inspectors. The kit includes all the components needed for installation and monitoring, including a digital gauge, so you can start recording movement right away.

Whether you’re monitoring cracks for safety, maintenance, or research, the kit offers a reliable, high-quality solution. Its clear, easy-to-read measurements and durable construction make it a valuable resource for anyone needing to monitor and other materials over time.

Accessories:

• Standard Crack Monitor: simple design to monitor crack movement

• Crack Monitor Plus: to record movement and for precise measurement with Digital Calipers

• Width Gauge: to measure cracks up to 0.275in (7mm) by finding the corresponding specified width value

• Corner Adapter: to monitor corner angles 70 to 180°

• Digital Calipers: measures in inches or millimeters

• Crack Monitoring Discs: to attach to a flat surface on either side of the crack to get consistent and accurate measurements

• Profoscope+ Rebar Locator and Covermeter: for efficiently locating rebars up to 7in deep and mid-point between bars