Concrete Crack Ruler Gauge Kit

Crack Monitoring Pins: Concrete Crack Ruler Gauge Kit

Concrete Crack Gauge Kit with Crack Width Ruler

The Concrete Crack Gauge Kit is designed to monitor cracking in structural concrete and masonry surfaces. It helps inspectors track crack width and movement over time using simple, accurate tools. Individual crack monitoring components are also available under Crack Monitors for replacement or expansion.

This complete kit includes five Crack Monitor Plus units, two corner adapters, and a transparent crack width ruler with graduated markings. The ruler allows quick measurement of initial crack width and serves as a cost-effective alternative to Digital Calipers.

All components are packed in a durable carry bag with a shoulder strap, making the kit easy to transport between inspection sites.

Kit Contents

The Concrete Crack Gauge Kit includes:

• 5 Crack Monitor Plus units
• 2 Corner Adapters
• Crack width ruler with graduated scale
• 1in (#8) Phillips wood fixing screws
• Rapid-set epoxy adhesive
• Installation instruction manual
• Crack progress chart and recording sheets
• Carry bag with shoulder strap

Installation Options

The crack gauges can be installed using screws or epoxy adhesive. Adhesive mounting is ideal when drilling into concrete surfaces is not permitted. Proper alignment during installation ensures accurate crack movement readings over time.

The clear instructions provided help ensure correct placement for reliable long-term monitoring.

What Is a Crack Monitoring Kit?

Crack monitoring kits are essential tools used in construction materials testing and structural inspections. They allow professionals to measure crack width, direction, and movement over time. By tracking changes, inspectors can evaluate crack severity and identify potential structural risks early.

Recorded measurements support repair planning, structural assessment, and long-term safety documentation.

Applications and Uses

This crack gauge kit is widely used to monitor cracks in:

• Concrete walls and slabs
• Building corners and joints
• Bridges and roadways
• Pavements and masonry structures

The overlapping acrylic plates—one with a millimeter grid and the other with crosshairs—allow precise tracking of horizontal and vertical crack movement. Once installed, the gauge remains in place for long-term monitoring.

Accuracy and Ease of Use

The kit is suitable for structural engineers, building inspectors, and contractors. Its simple design, clear markings, and durable construction make crack monitoring easy and reliable. The included crack progress chart helps visualize movement trends and determine when corrective action is required.

Compatible Accessories and Tools

The crack monitoring kit works with several Certified MTP tools, including:

• Standard Crack Monitor for visual crack movement tracking
• Crack Monitor Plus for precise measurement
• Digital Calipers for detailed width readings
• Crack Width Gauges for measuring cracks up to 7mm
• Profoscope+ Rebar Locator and Covermeter for locating reinforcing steel within concrete