BUILDERA CRACKMON® 3D THREE-AXIS CRACK MONITOR

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Product Data Sheet

CRACKMON® 3D Data Sheet and Installation Guide (PDF)

Applications

Airports, bridges, dams, highways, power plants
Basements, beams, foundations, retaining walls
Commercial and residential structures, historic monuments
Seismic retrofits
Unreinforced masonry (URM/URB)

Features and Benefits

Measure cracks in 3D: Ideal for non-planar offset cracks
Three mounting options: Flush, inside, and outside corners
Three-axis range: ±12 mm (X), ±6 mm (Y), ±7 mm (Z)
High resolution: ±1 mm (±0.04”) on X, Y & Z axes
Rugged: 18-gauge type-304 stainless steel resists corrosion
Permanent Markings: Laser-etched grid won't fade or rub off
Proven quality: Designed and manufactured in the USA

Product Description

The BUILDERA CRACKMON® 3D Three-Axis Crack Monitor is a stainless-steel, industrial-grade crack monitor for the repair, restoration, and long-term monitoring of concrete, masonry, plaster, stucco, and steel structures where 3-axis measurements are required. Most crack monitors or crack meters measure in one or two dimensions, but not all three. The BUILDERA CRACKMON® 3D is ideal for foundation and basement restoration, seismic retrofitting, or any structural, geotechnical, or civil engineering project that requires ongoing monitoring of structural defects and cracks in multiple dimensions.

Available in flush, inside, and exterior-corner mount versions, BUILDERA manufactures each CRACKMON® 3D in the USA using state-of-the-art precision laser cutting. Durable type-304 stainless steel with high-contrast laser-etched markings provide permanent readability even in harsh, corrosive outdoor environments.

Fasteners and epoxy supplied separately.

Engineering Specifications

Crack Range
±12 mm (X), ±6 mm (Y), ±7 mm (Z)

Discrimination (Visual)
±1 mm on X, Y & Z axes

Weight
59 grams

Material
18-ga (0.047" typ.) Type 304 stainless steel

Finish
#4 light-grained finish (top surface). Minor cosmetic flaws due to cutting and bending are normal and do not affect functionality.

Coefficient of Linear Expansion
17 μm/m-ºC, 0 to +100 ºC

Installation Method
Thixotropic (non-sagging) 5-minute epoxy and/or fasteners (sold separately). Buildera recommends epoxy when using fasteners to help prevent inadvertent slippage.

Recommended Fastener
1-1/4" #6 (M3.5) or #8 (M4.2) stainless-steel pan-head sheet-metal screws with serrated external-tooth lock washers. Use tamper-resistant fasteners for improved security. Consult Buildera for recommendations.

Anchor
Toggler® A5 (3/16" dia). Drill 1-1/2"-deep hole.

Environmental
Reusable and recyclable

Country of Origin
Engineered and made in the USA